Corydalis oligosperma C.Y.Wu & T.Y.Shu

Species

Angiosperms > Ranunculales > Papaveraceae > Corydalis

Characteristics

Herbs, perennial, 10-15(-20) cm tall, glabrous or often papillose-pubescent; stems and petioles of radical leaves attenuate to filiform underground base. Storage roots unknown. Stems simple or branched with 2-4 leaves, ascending. Radical leaves well developed at anthesis; petiole 4-8 cm; blade glaucous abaxially, adaxially dark green, or both surfaces gray-glaucous, ovate, 3-4 × 2-3 cm, pinnate to bipinnate to sub-triternate; pinnae 2 or 3 pairs, shortly stalked, deeply biternatisect; lobes oblanceolate, 3-8 × 2-3 mm, mucronate. Cauline leaves like radical leaves; lower petiole 0.5-7 cm, upper leaves sessile; uppermost leaves smaller, less divided, often not to midvein. Raceme simple or branched at base, dense at flowering, 8-20-flowered, at fruiting gradually distant; lower bracts 8-17 mm, unequally pinnati-to palmatisect to pectinate-dentate; upper bracts smaller, lanceolate, entire, acute. Pedicel 5-10 mm in flower, at fruiting elongated to 12-22(-30) mm, arcuately recurved. Sepals 0.2-0.6 × 0.5-1 mm, deeply dentate. Corolla yellow, with greenish to brownish keels; veins distinct or indistinct; outer petals subobtuse, margin undulate-crenate, with apically broad (1.5-2 mm) obtuse dentate crest long decurrent on spur; upper petal 14-17 mm; spur usually slightly downcurved and tapering at apex, cylindric, 6-9 mm; nectary 1/2(-2/3) as long as spur, slender; lower petal 8-9 mm, with broad rounded shortly mucronate limb, gradually narrowed to base, claw indistinct; inner petals 7-8 mm. Stigma square; 2 marginal central papillae distinct, lateral marginal broad and indistinct; geminate papillae sublateral and terminating in well-developed basal lobes. Capsule narrowly obovoid to oblong, 7-8 × ca. 2 mm, 1-5-seeded. Seeds in 1 row, ca. 2 mm, smooth; caruncle large, fleshy.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.15
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
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 - 60
Germination temperacture (C°) 10 - 15
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Corydalis oligosperma world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:929007-1
WFO ID wfo-0000622656
COL ID 6B4ZM
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Corydalis oligosperma