Draba grandis Langsd. ex Dc.

Species

Angiosperms > Brassicales > Brassicaceae > Draba

Characteristics

Perennials; caudex simple or branched (fleshy, with persistent leaf bases); not scapose. Stems (decumbent), unbranched, (0.2-)0.5-2.7(-3.7) dm, pubescent throughout, trichomes 2-4-rayed, 0.05-0.2 mm. Basal leaves rosulate; long-petiolate; petiole (winged, (1-) 4-15 cm), often not ciliate (or ciliate to blade apex, trichomes simple, 0.3-0.8 mm); blade (somewhat fleshy), oblanceolate to spatulate or obovate, (1-) 2-11(-17) cm × (5-)8-30(-45) mm, margins often coarsely dentate, (pubescent as petiole), surfaces usually pubescent, abaxially with stalked, 2-4-rayed trichomes, 0.05-0.25 mm, adaxially similar, or also with simple and long-stalked, 2-rayed trichomes, to 0.8 mm, rarely glabrescent, with mostly simple and 2-rayed trichomes. Cauline leaves 2-12(-16); sessile or petiolate; blade oblanceolate to obovate, margins dentate or entire, surfaces pubescent as basal. Racemes 5-26(-32)-flowered, ebracteate, elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels horizontal to divaricate-ascending or ascending, usually straight, rarely curved upward, (5-)10-22(-27) mm, pubescent, trichomes 2-4-rayed (0.05-0.3 mm), sometimes with simple and spurred ones. Flowers: sepals broadly ovate, 3-4 mm, pubescent, (trichomes simple and short-stalked, 2-rayed); petals yellow, oblanceolate to spatulate, 4.5-7 × 1.8-3 mm; anthers oblong, 0.7-1 mm. Fruits oblong to lanceolate, or ovate to suborbicular, slightly twisted or plane, flattened, (6-)10-20(-25) × 4-7 (-9) mm; valves glabrous; ovules 24-52 per ovary; style (0.2-)0.4-1.6(-2) mm. Seeds ovoid, 1.4-2 × 0.8-1.2 mm. 2n = 36.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.17
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
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 grandis world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:282629-1
WFO ID wfo-0000655391
COL ID 37J59
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Cochlearia septentrionalis Cochlearia siliquosa Draba hyperborea Draba greenei Draba hatchiae Nesodraba grandis Nesodraba siliquosa Nesodraba megalocarpa Cochlearia spathulata Draba spathulata Draba hyperborea var. siliquosa Draba hyperborea subsp. platytricha Draba hyperborea var. spathulata Draba hyperborea f. megalocarpa Draba grandis