WorldFloraDB - Lepidium heterophyllum

Characteristics

Perennials; (caudex branched); hirsute. Stems branched from base, erect to ascending, often decumbent basally, unbranched or branched (few) distally, 1-5 dm. Basal leaves rosulate; petiole 1-6.2 cm; blade oblanceolate or oblong-elliptic, 1-4.5 cm × 4-14 mm, margins entire, repand, or denticulate. Cauline leaves sessile; blade oblong to deltate-lanceolate, 1-3.5 cm × 3-8 mm, base sagittate or auriculate, margins dentate to denticulate. Racemes much-elongated in fruit; rachis hirsute, trichomes spreading, straight. Fruiting pedicels horizontal, straight or slightly recurved, (terete), 2.8-5 × 0.3-0.4 mm, hirsute. Flowers: sepals oblong, 1.6-2.2 × 0.6-1.1 mm; petals white, spatulate, 1.8-2.8 × 0.8-1.4 mm, claw 1-2 mm; stamens 6; filaments 1.8-2.6 mm, (glabrous); anthers 0.4-0.5 mm. Fruits broadly oblong to ovate, 4-5.5 × 3.5-4 mm, (curved adaxially), apically broadly winged, apical notch 0.2-0.3 mm deep; valves thin, often not papillate, not veined; style (0.6-)1-1.5 mm, well-exserted beyond apical notch. Seeds (dark brown), ovoid, 1.8-2.2 × 1-1.2 mm. 2n = 48.

More

Perennial herb. Stems decumbent to erect, hairy, (5)-10-30 cm tall, sparingly branched above. Lvs hairy. Basal lvs persistent or withering at fruiting, ovate or narrow-obovate, entire or rarely lyrate-pinnatifid, 3-10 × 0.5-1 cm; petiole > lamina. Stem lvs suberect, narrowly triangular, sessile, 10-30 × 2-10 mm, with narrow pointed amplexicaul basal lobes; margin with short coarse teeth or almost entire. Racemes 5-10 cm long; rachis densly hairy; pedicels densely hairy, spreading, 3-5 mm long at fruiting. Sepals glabrous or hairy, 1-1.5 × c. 0.5 mm. Petals white, clawed, c. 2 × 0.5 mm. Stamens 6. Silicle elliptic, 3.5-5 × 2-4 mm; lower part of style connate with the broad wing, upper part free for 0.5-1 mm, protruding beyond the short apical notch; valves glabrous or sparsely papillate. Seeds very dark brown, ovoid, 2-2.5 mm long.

Life form

perennial

Growth form

herb

Growth support

free-standing

Foliage retention

Sexuality

hermaphrodite

Pollination

autogamy

Spread

epizoochory

Mature width (meter)

-

Mature height (meter)

0.1 - 0.3

Root system

-

Rooting depth (meter)

-

Root diameter (meter)

-

Flower color

Blooming months

Jan	Feb	Mar
Apr	May	Jun
Jul	Aug	Sep
Oct	Nov	Dec

Fruit color

-

Fruiting months

-

Nitrogen fixer

-

Photosynthetic pathway

c3

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)	-
Germination temperacture (C°)	-
Germination luminosity	-
Germination treatment	-
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-