Lepidium thurberi Wooton

Thurber's pepperweed (en)

Species

Angiosperms > Brassicales > Brassicaceae > Lepidium

Characteristics

Annuals; pubescent, (trichomes cylindrical, to 1 mm, and much shorter, clavate ones). Stems often simple from base, erect, branched (several) distally, (0.8)1.2-4.9(-6) dm. Basal leaves (often withered at anthesis); rosulate; petiole 1-3 (-4.5) cm; blade pinnatifid (lobes oblong to ovate or lanceolate), (1.4-)2.2-7(-10) cm, margins (of lobes) dentate-sinuate. Cauline leaves shortly petiolate; 1.5-6 cm × 6-25 mm, base not auriculate, margins (of lobes) entire or dentate. Racemes considerably elongated in fruit; rachis pilose, trichomes straight, cylindrical (to 1 mm) with much smaller, clavate ones, sometimes one type present. Fruiting pedicels divaricate-ascending to horizontal, straight or slightly recurved, (terete), 4-8(-10) × 0.2-0.3 mm, puberulent or pilose adaxially. Flowers: sepals suborbicular to broadly ovate, 1-1.6 × 0.7-1 mm; petals white, broadly obovate to suborbicular, 3-4 × 1.2-2.2 mm, claw 0.7-1.3 mm; stamens 6; filaments (median pairs) 1-1.6 mm, (glabrous); anthers 0.4-0.5 mm. Fruits broadly ovate to orbicular, 2-2.9 × 2-2.8 mm, apically winged, apical notch 0.1-0.2 mm deep; valves thin, smooth, not veined, glabrous; style 0.3-0.8 mm, exserted beyond apical notch. Seeds ovate-oblong, 1.3-1.6 × 0.8-1.1 mm.
More
A herb.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.5
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Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a temperate plant.
Light -
Soil humidity -
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Hardiness (USDA) 5-10

Usage

The seeds are winnowed, parched, sun dried and then cooked. They can be stored for later use.
Uses medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Distribution

Lepidium thurberi world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:138159-2
WFO ID wfo-0001216694
COL ID 6PB4F
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Lepidium thurberi