Draba lemmonii S.Watson

Granite draba (en)

Species

Angiosperms > Brassicales > Brassicaceae > Draba

Characteristics

Perennials; (cespitose, not pulvinate); caudex branched (covered with persistent petiole remains, branches sometimes terminating in sterile rosettes); scapose. Stems unbranched, 0.3-1(-1.5) dm, hirsute throughout, trichomes simple, 0.2-0.7 mm, with short-stalked, 2-rayed ones, (smaller). Basal leaves rosulate; shortly petiolate; petiole base and margin ciliate, (trichomes simple, 0.5-1 mm, midvein obscure); blade (somewhat fleshy), oblanceolate to obovate, 0.4-1(-1.8) cm × 1.5-4(-6) mm, margins entire, surfaces hirsute, abaxially mostly with stalked, 2-rayed trichomes, 0.1-0.8 mm, rarely with fewer, simple ones, adaxially with mostly simple ones, 0.5-1 mm. Cauline leaves 0. Racemes 4-15(-21)-flowered, ebracteate, elongated in fruit; rachis not flexuous, hirsute as stem. Fruiting pedicels horizontal to divaricate-ascending (often somewhat decurrent basally), straight or curved upward, 4-10 (-14) mm, hirsute as stem. Flowers: sepals ovate, 2-2.7 mm, pubescent, (trichomes simple, short-stalked, 2-rayed); petals yellow, spatulate, 4-6 × 1.5-2.5 mm; anthers oblong, 0.4-0.6 mm. Fruits ovate to ovate-lanceolate, slightly twisted, flattened, 4-9 × 3.5-5 mm; valves pubescent, trichomes usually simple, 0.1-0.45 mm, rarely with fewer, short-stalked, 2-rayed ones; ovules 10-14(-16) per ovary; style 0.1-0.6(-0.8) mm. Seeds ovoid, 1-1.4 × 0.6-1 mm. 2n = 50.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.15
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) 5-10

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 -

Images

Draba lemmonii unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:282760-1
WFO ID wfo-0000655634
COL ID 37J8K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Draba lemmonii Draba lemmonii var. lemmonii