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Flora of the Canadian Arctic Archipelago - Draba L. It has been suggested that polyploids in Draba may have formed recurrently from different populations of the parental species (polytopy), and it is also possible that a given taxonomic species may actually comprise several polypoid races, each originating from different progenitor species. Leaves of a Draba plant that are glabrous except on the margnis where there is a ciliate fring of hairs. Genus characterized by siliques; fruit that have a partition with seeds attached to the edges of the partition and not to the ovary wall. www.mun.ca /biology/delta/arcticf/_ca/www/badr.htm   (948 words)

Plants Belonging to the Genus 'Draba'   (Site not responding. Last check: 2007-10-01) Draba juniperina synonym of Draba oligosperma (Fewseed Draba) Draba pectinipila synonym of Draba oligosperma (Fewseed Draba) Draba subsessilis synonym of Draba oligosperma (Fewseed Draba) www.desert-tropicals.com /Plants/Brassicaceae/Draba.html   (37 words)

draba genus Draba, which is the Greek word for 'acrid', is the largest genus in the mustard family (Brassicaceae, formerly Cruciferae). Draba is a diverse genus of annuals and perennials. There is a Draba for every imaginable combination of growing conditions in a rock garden: hot, dry and sunny; humousy, moist and semi-shady; Ca rich and Ca poor soils; and anything in between. www.ovrghs.ca /articles/Genus/Draba.htm   (643 words)

Draba - Wikipedia, the free encyclopedia Draba is a large genus of cruciferous plants, commonly known as Whitlow-grasses. He who hopes for spring with upturned eye never sees so small a thing as Draba. Draba asks, and gets, but scant allowance of warmth and comfort; it subsists on the leavings of unwanted time and space. en.wikipedia.org /wiki/Whitlow_grass   (212 words)

Vascular Plants of Wisconsin: Draba verna (spring whitlow-grass)   (Site not responding. Last check: 2007-10-01) Draba verna is a small annual plant usually found on sunny sites of low productivity. Draba verna is undoubtedly more common in Wisconsin than is indicated by the distribution map. Based on 5 years of phenology data from Brown County the average date of first flower is 4/16, with the earliest date 4/01. www.uwgb.edu /BIODIVERSITY/herbarium/Vascular_plants/draver01.htm   (264 words)

CPC Plant Profile - National Collection of Endangered Plants Draba burkei is often found in the crevices of rock outcrops on cooler north or northwest slopes (NY Botanical Garden). Draba burkei occurs in four areas along the Cache Valley and to the southwest: the Wellsville Mountains, Willard Peak and Mt. Ben Lomond, Mt. Ogden and an isolated population on James Peak (Windham 1998). Draba burkei is associated with quartzite soils in its southern range and limestone or calcareous shale outcrops in its northern and central range (Windham 1998). www.centerforplantconservation.org /ASP/CPC_ViewProfile.asp?CPCNum=1469   (895 words)

title An attractive small Draba with distinct, noticeably hairy, rigid leaves in a quite open rosette; from which arise charming lemon-yellow heads of several flowers. As Drabas go this almost has the appearance of 'rude good health'; pale, grey-green, hairy rosettes and multi-headed stems of bright yellow flowers. A very softly hairy Draba, appearing almost grey; that is until it is covered in deep yellow, short-stemmed flowers in March. www.adhocplants.com /page38.html   (308 words)

Cardaria draba   (Site not responding. Last check: 2007-10-01) draba occurs in wet and dry grasslands, scrubs, and arid areas with alkali soils. draba sometimes appears after a grass fire; the heat presumably breaks the dormancy of seeds lying in or on the soil (Parsons 1992). Although the mite Acerea draba is effective in sterilizing plants of Cardaria draba, it is also found on commercial crops, as is the aphid, Aphis armoracea (Cook 1987). ucce.ucdavis.edu /datastore/detailreport.cfm?usernumber=23&surveynumber=182   (1902 words)

Stanley Creek Draba (Draba trichocarpa) Species Profile Stanley Creek Draba (also known as Stanley whitlow-grass) is a caespitose, perennial plant growning in a compact clump up to 10 cenimeters (cm) (3.93 inches (in)) across. Stanley Creek draba, endemic to the Stanley Basin of Idaho, inhabits open, exposed, level to steep upper slopes, ridges, and rock outcrops. Stanley Creek draba is endemic to the Stanley Basin of Idaho, where the plants occur in small populations on restricted habitats. www.gsrcorp.com /swtes/DRTR3/DRTR3_text.html   (520 words)

[No title] draba ID, and WY Shown as Perennial peppergrass Lepidium draba IN and MN (Lepidium draba is a synonym of Cardaria draba subsp. repens is a synonym of Cardaria draba subsp. draba Whitetop ID Shown as Lepidium draba Perennial peppergrass IN, and MN Lepidium draba is a synonym of Cardaria draba subsp. www.ams.usda.gov /lsg/seed/appendix03.txt   (2900 words)

[No title]   (Site not responding. Last check: 2007-10-01) Draba carnosula O.E. Schulz - Mt. eddy whitlow-grass. Synonymy: Draba apiculata C.L. Hitchc., Draba densifolia var. Draba jaegeri Munz & Johnston - Jaeger's whitlow-grass. www.csdl.tamu.edu /FLORA/cgi/ruled_html_query?colldir=kartesz/mgdata&collname=bonap98&query=Draba   (898 words)

Cardaria genus   (Site not responding. Last check: 2007-10-01) Cardaria draba was first found in Yreka California in 1876, C. chalepensis was first collected in Chino, California in 1918, and C. pubescens was first collected in Alberta Canada and Michigan in 1919. Seed viability may be less than three years for C. draba, is likely longer for C. chalepensis and is unknown for C. pubescens. Approximately 75% of the total biomass of C. draba is belowground. www.cdfa.ca.gov /phpps/ipc/weedinfo/cardaria.htm   (2131 words)

[No title] Pertusaria, Ochrolechia; with Cerastium arcticum, C.alpinum, Draba norvegica 34 1 Polar deserts 2 Polar deserts: patches of vegetation dominated by foliose and crustose lichens, mosses and infrequent flowering plants 101 Arctic Barents Lichens: gg. Pertusaria, Ochrolechia; with Cerastium arcticum, C.alpinum, Draba norvegica 54 1 Polar deserts 2 Polar deserts: patches of vegetation dominated by foliose and crustose lichens, mosses and infrequent flowering plants 101 Arctic Barents Lichens: gg. Pertusaria, Ochrolechia; with Cerastium arcticum, C.alpinum, Draba norvegica 60 1 Polar deserts 2 Polar deserts: patches of vegetation dominated by foliose and crustose lichens, mosses and infrequent flowering plants 101 Arctic Barents Lichens: gg. www.ngdc.noaa.gov /seg/cdroms/EcosystemsB/datasets/fvv/fvvveg.txt   (187 words)

Cardaria draba Cardaria draba is a deep-rooted perennial herb up to 0.5 m tall. It has become a major weed of crops in Europe and the Middle East, and of cereal crops in the U.S., particularly in the western states. Cardaria draba is one of ten species covered under the Federal Seed Act for which tolerance is applicable to its introduction (7 CFR 361.6(a)(2)). www.lucidcentral.org /keys/FNW/FNW%20seeds/html/fact%20sheets/Cardaria%20draba.htm   (369 words)

ARS | Publication request: Polymorphic Microstaellite Markers in Polyploid Lepidium Draba L. Ssp. Draba (Brassicaceae) ... Draba (Brassicaceae) and Cross-Species Amplification in Closely Related Taxa. Interpretive Summary: At present, efficient biological control of this Eurasian native weed in the USA is hampered by lack of knowledge of its population genetic structure and colonization process. draba (Brassicaceae) is a noxious invasive weed in the USA. www.ars.usda.gov /research/publications/Publications.htm?seq_no_115=185386&pf=1   (221 words)

Draba Genus - Mustard Family Drabas or whitlow-grasses are annual or biennial to strongly perennial, leafless to leafy-stemmed herbs with entire to toothed, simple leaves, hairless to copiously short-hairy with branched to star-shaped or sometimes simple hairs. The flowers are arranged in clusters that are bractless or sometimes partially with bracts at flower bases. Several of the Eurasian perennials are valued rock garden plants, but some are difficult to grow. montana.plant-life.org /families/Brassicaceae/Draba.htm   (384 words)

draba - OneLook Dictionary Search Draba, draba : UltraLingua English Dictionary [home, info] noun: any of numerous low-growing cushion-forming plants of the genus Draba having rosette-forming leaves and terminal racemes of small flowers with scapose or leafy stems; fruit is a dehiscent oblong or linear silique Phrases that include draba: genus draba, draba verna www.onelook.com /?w=draba&last=datab&loc=spell   (127 words)

Botanical Electronic News - BEN #357 It wasn't until 1975 that the species Draba yukonensis was recognized and its description was published by Alf Erling Porsild, based on the collection made by Dr. Schofield. To their great surprise they had rediscovered the secret stand of Draba yukonensis, in the same location that it had been found by others half a century before. Two specimens of Draba yukonensis were mixed with nine specimens of Draba cana; once again apparently from the type locality. www.ou.edu /cas/botany-micro/ben/ben357.html   (2116 words)

Draba rigida propigation - Alpines & Rock Gardens Forum - GardenWeb I've read that it is possible to propigate Draba rigida by separating the rosettes, I'm hoping someone can tell me the best technique and time to do this. Here's what I do for Drabas and it has worked fine. I put one hand on the plant and press down so as not to pull up most of the plant (and thus not pull it out from the roots!). forums.gardenweb.com /forums/load/alpines/msg0816515021065.html?/alpines/msg0816515021065.html   (619 words)

NatureServe Explorer Species Index: Genus Draba BC, NT, NU, ON, QC, SK, YT Draba cinerea var. AZ, CA, NV, TX, UT Draba cuneifolia var. AB, BC, LB, NT, NU, QC, YT Draba fladnizensis var. www.natureserve.org /explorer/speciesIndex/Genus_Draba_110954_1.htm   (176 words)

Research & Extension Center Virtual Herbarium - Wedgeleaf Draba(Draba cuneifolia)   (Site not responding. Last check: 2007-10-01) Wedgeleaf Draba is an annual erect plant three to ten inches tall. The leaves are found mostly at the base of the stem and are covered with short spreading hairs. Wedgeleaf Draba blooms from February to April and can be found on the sandy granitic or calcareous soils of the Edwards Plateau region. uvalde.tamu.edu /herbarium/drcu.htm   (74 words)

PLANTS Profile for Draba glabella (smooth draba) | USDA PLANTS PLANTS Profile for Draba glabella (smooth draba) Draba glabella Pursh occures in the following states: Alaska, Michigan, New York, Vermont, Wisconsin, Wyoming View 107 genera in Brassicaceae, 96 species in Draba or click below on a thumbnail map or name for species profiles. plants.usda.gov /java/profile?symbol=DRGL   (169 words)

Draba oligosperma Yellow Flowered Moss Draba oligosperma Yellow Flowered Moss's foliage color is silver and type is stressdeciduous. Draba oligosperma Yellow Flowered Moss's flower color is yellow. Communities for Draba oligosperma Yellow Flowered Moss:Alpine Fell-Fields. www.laspilitas.com /plants/252.htm   (300 words)

Nearctica - Eastern Wildflowers - Brassicaceae - Whitlow Grass (Draba verna) Nearctica - Eastern Wildflowers - Brassicaceae - Whitlow Grass (Draba verna) Habitat: This species is found in a variety of disturbed areas including empty lots, fields, and roadsides. However the seed pods of Carolina Whitlow grass are longer (about 3 to 4 times as long as wide) and the stem has an opposite pair of leaves just above the basal rosette. www.nearctica.com /flowers/brassic/Dverna.htm   (175 words)

Nearctica - Eastern Wildflowers - Brassicaceae - Carolina Whitlow Grass (Draba reptans) Similar Species: The combination of nearly leafless stems, small size, spring flowering period, and notched petals will separate species of Draba from almost all other crucifers. Carolina Whitlow Grass can be mistaken for Whitlow Grass. However the seed pods of Whitlow grass are shorter (about 1 to 1.5 times as long as wide) and the stem lacks an opposite pair of leaves just above the basal rosette. www.nearctica.com /flowers/brassic/Dreptans.htm   (162 words)

Draba sibirica (Pall.) Thell. (Siberian Whitlowgrass) Other species in the genus Draba : D. aleutica Ekman ex Hultén (Aleutian Draba) • D. & Payson ex Payson (Limestone Draba) • D. zipcodezoo.com /Plants/D/Draba_sibirica.asp   (465 words)

Draba incana in the Linnaean Typification Project   (Site not responding. Last check: 2007-10-01) Draba incana, with the type designated by Buttler (but with the choice incorrectly attributed to Rollins), was proposed as conserved type of the genus by Jarvis (in Taxon 41: 562. See comments by Heath (in Calyx 4: 110; 5: 29. Image reproduced by kind permission of The Linnean Society of London. www.nhm.ac.uk /jdsml/research-curation/projects/linnaean-typification/detail.dsml?ID=319700&listPageURL=list%2edsml%3fbeginIndex%3d450%26Varqtype%3dstarts%2bwith   (131 words)

PLANTS Profile for Draba sharsmithii (Sharsmith's draba) | USDA PLANTS PLANTS Profile for Draba sharsmithii (Sharsmith's draba) View 107 genera in Brassicaceae, 96 species in Draba Draba sharsmithii Rollins & Price – Sharsmith's draba plants.usda.gov /java/profile?symbol=DRSH   (88 words)

Checklist of Plants from Gaoligongshan   (Site not responding. Last check: 2007-10-01) Brassicaceae : Draba [ 8 records returned, including 4 recognized taxa ] : Draba gracillima J. Hooker & Thomson, J. Proc. Draba involucrata (W. Smith) W. Smith, Notes Roy. www.calacademy.org /research/botany/yunnan/BotGLGSBrwsRecs.asp?Obj=GLGS&Atr=Genus&Val=Draba   (54 words)

Definition of draba - Merriam-Webster Online Dictionary Click here to search for another word in the Merriam-Webster Online Dictionary. Learn more about "draba " and related topics at Britannica.com See a map of "draba " in the Visual Thesaurus www.m-w.com /dictionary/draba   (41 words)

Gardening : Perennials : Draba : Home & Garden Television Drabas (Draba sp.) are colorful plants that work especially well in rock gardens. These semi-evergreen perennials form soft green cushions of foliage. Drabas are low-growing plants, ideal for small spaces. www.hgtv.com /hgtv/gl_plants_perennials/article/0,1785,HGTV_3610_1382864,00.html   (87 words)

Invasive Species: Plants - Whitetop (Lepidium draba) Scientific name: Lepidium draba L. (formerly known as Cardaria draba) Plant profile for Cardaria draba - PLANTS Database Biological Control of Whitetops, Lepidium draba and L. www.invasivespeciesinfo.gov /plants/whitetop.shtml   (289 words)

PLANTS Profile for Draba arabisans (rock draba) | USDA PLANTS PLANTS Profile for Draba arabisans (rock draba) Click on the image below to enlarge it and download a high-resolution TIFF file. Illustrated flora of the northern states and Canada plants.usda.gov /java/profile?symbol=DRAR   (166 words)

Native Plant Information Network - Draba breweri var. cana   (Site not responding. Last check: 2007-10-01) Native Plant Information Network - Draba breweri var. cushion draba, hoary whitlowgrass, lanceleaf draba, lanceolate draba Google: Search Google Images for Draba breweri var. www.wildflower2.org /NPIN/Gallery/Detail.asp?ID=4225   (70 words)

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