Draba senilis O.E.Schulz

Species

Angiosperms > Brassicales > Brassicaceae > Draba

Characteristics

Herbs perennial, 1-5 cm tall, cespitose, surculose, scapose. Caudex with many, slender branches terminated in rosettes and covered with petiolar remains of previous years. Stems erect, simple, often densely subhirsute with primarily simple and smaller, subsessile forked trichomes, sometimes with few stellate trichomes. Basal leaves rosulate, persistent; petiole 1-5(-8) mm, persistent and becoming stramineous, often ciliate with simple, setose or subsetose trichomes to 1.4 mm; leaf blade oblong, elliptic, or narrowly obovate, 3-10(-15) × (1-)2-4(-7) mm, densely pubescent with whitish, long-stalked, stellate and forked trichomes, adaxially villous with predominantly simple trichomes, rarely softly stellate, base cuneate, margin entire, apex obtuse to subacute. Cauline leaves absent. Racemes 3-7(-12)-flowered, ebracteate, elongated slightly in fruit. Fruiting pedicels 3-9(-12) mm, divaricate or divaricate-ascending, straight or rarely slightly curved, pubescent all around. Sepals oblong or ovate, 2-2.5 × 1-1.5 mm, erect, abaxially sparsely pilose or glabrous, base of lateral pair not saccate, margin narrowly membranous. Petals yellow, obovate, 4-6 × 2-3(-3.5) mm, rounded; claw to 1 mm. Filaments 2.5-3 mm; anthers oblong, 0.5-0.6 mm. Ovules 6-10 per ovary. Fruit ovate, 4-7 × 3-5 mm, latiseptate, not twisted; valves glabrous, not veined, base obtuse, apex acute; style 0.5-0.8 mm. Seeds dark brown, ovate, 1.5-2 × 1-1.5 mm. Fl. May-Jul, fr. Jul-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.01 - 0.05
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
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 senilis world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:283053-1
WFO ID wfo-0000656106
COL ID 37JG6
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Draba piepunensis Draba senilis Draba composita