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Lepidium austrinum Small
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FamilyScientific name @ source (records)
Albuginaceae  Albugo candida @ BPI (1)
Peronosporaceae  Peronospora parasitica @ BPI (1)

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Lepidium austrinum Small
southern pepperwort

Image of Lepidium austrinum

General Information
Symbol: LEAU3
Group: Dicot
Family: Brassicaceae
Duration: Annual
Growth Habit : Forb/herb
Native Status : L48   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Lepidium thumbnails at the Plants Gallery

Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory . United States, TX, Harlingen. Usage Requirements .



Symbol Scientific Name
LELAO Lepidium lasiocarpum Nutt. var. orbiculare (Thell.) C.L. Hitchc.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Dilleniidae
Order Capparales
Family Brassicaceae ⁄ Cruciferae – Mustard family
Genus Lepidium L. – pepperweed
Species Lepidium austrinum Small – southern pepperwort

Subordinate Taxa

This plant has no children

Legal Status

U.S. Weed Information
Lepidium austrinum southern pepperwort This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
SWSS Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM . Southern Weed Science Society. Champaign, Illinois.

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (LEAU3)
Integrated Taxonomic Information System (LEAU3)
Integrated Taxonomic Information System (LELAO)
Lady Bird Johnson Wildflower Center Native Plant Information Network (LEAU3)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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Link to Flora of North America home
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FNA Vol. 7 Page 569 , 573, 576 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Lepidium

4. Lepidium austrinum Small, Fl. S.E. U.S. 468, 1331. 1903.

Lepidium austrinum var. orbiculare Thellung; L. lasiocarpum var. orbiculare (Thellung) C. L. Hitchcock

Annuals or biennials; often densely hirsute, (trichomes cylindrical). Stems often simple from base, erect, branched distally, (1.5-)2-6.7(-9.4) dm. Basal leaves (later withered); rosulate; petiole (0.7-) 1.5-4.5 cm; blade pinnatifid, 2-8.3 cm × 9-26 mm, margins (of lobes) entire or dentate. Cauline leaves shortly petiolate; blade oblanceolate to nearly linear, 1-4.5 (-6.2) cm × 3-10(-17) mm, base attenuate to cuneate, not auriculate, margins entire or dentate. Racemes much-elongated in fruit; rachis pubescent, trichomes curved, with fewer and longer, straight ones. Fruiting pedicels usually divaricate, rarely horizontal, straight or slightly recurved, (terete), (2.5-)3-4.1(-4.7) × 0.2 mm, puberulent adaxially. Flowers: sepals oblong, 0.8-1 × 0.2-0.4 mm; petals (sometimes absent), white, oblanceolate, 0.4-1.6 × 0.1-0.8 mm, claw absent; stamens 2, median; filaments 0.8-1 mm; anthers 0.1-0.2 mm. Fruits elliptic-obovate to obovate-orbicular, 2.4-3.2 × 1.8-2.5 mm, apically winged, apical notch 0.2-0.5 mm deep; valves thin, smooth, not veined, sparsely puberulent, (trichomes often antrorsely appressed, sometimes restricted to margin); style 0.05-0.1 mm, included in apical notch. Seeds ovate, 1.4-1.6 × 0.7-0.9 mm.

Flowering Mar-Jun. Disturbed grounds, railroad tracks and embankments, fields, knolls, stream banks, waste areas, open banks, roadsides, sandy terraces; Kans., La., Miss., N.Mex., Okla., Tex.; Mexico (Coahuila, Nuevo León, San Luis Potosí).

Updated: 2020-05-29 20:42:01 gmt
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