Draba trichocarpa Rollins

Stanley creek draba (en)

Species

Angiosperms > Brassicales > Brassicaceae > Draba

Characteristics

Perennials; (cespitose, densely pulvinate); caudex branched (covered with persistent leaves, branches sometimes terminating in sterile rosettes); scapose. Stems unbranched, 0.07-0.35 dm, pubescent throughout, trichomes (soft), stalked, subdendritic, (somewhat crisped), 0.1-0.5 mm, (simple ones absent). Basal leaves (densely imbricate); rosulate; sessile; blade oblong to obovate, 0.2-0.4 cm × 0.5-1.5 mm, margins entire, (ciliate, trichomes simple and branched, subdendritic, or spurred, 0.3-0.8 mm), surfaces sparsely pubescent, abaxially with stalked, 4-6-rayed stellate trichomes, 0.1-0.4 mm, adaxially with simple and 4-6-rayed trichomes, mainly on distal 1/2. Cauline leaves 0 (or 1); sessile; blade similar to basal. Racemes 2-9-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels divaricate-ascending to ascending, straight, 1-4.5 mm, pubescent as stem. Flowers: sepals ovate, 2-3 mm, pubescent, (trichomes short-stalked); petal color unknown, broadly obovate, 2-4 × 2-2.5 mm; anthers oblong, 0.5-0.6 mm. Fruits ovoid, plane, slightly inflated basally, flattened distally, 2-6 × 2-3.5 mm; valves densely pubescent, trichomes 4-rayed, 0.1-0.4 mm, (often some rays spurred or branched); ovules 4-10 per ovary; style 0.3-0.7 mm. Seeds oblong, 1.4-2 × 0.8-1.2 mm.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.01 - 0.04
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-3
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 90
Germination temperacture (C°) 12
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Draba trichocarpa world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:83891-2
WFO ID wfo-0000656255
COL ID 6DJVB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Draba trichocarpa