Slideshow image
Camelina microcarpa Andrz. ex DC.
Family: Brassicaceae
littlepod false flax,  more...
[Camelina sativa subsp. microcarpa (DC.) E. Schmid,  more]
Camelina microcarpa image
Max Licher  
Annuals. Stems unbranched or branched distally, (0.8-)2-8 (-10) dm, densely to moderately hirsute basally, trichomes simple, to 2.5 mm, often mixed branched ones, (glabrescent distally). Basal leaves withered by anthesis. Cauline leaves: blade lanceolate, narrowly oblong, or linear-lanceolate, (0.8-)1.5-5.5(-7) cm × 1-10(-20) mm, base sagittate or minutely auriculate, margins entire or, rarely, remotely denticulate, (often subciliate), apex acute, surfaces pubescent, trichomes primarily simple. Fruiting pedicels ascending, 4-14(-17) mm. Flowers: sepals 2-3.5 × 0.5-1 mm; petals pale yellow, (2.5-) 3-4(-6) × 1-2 mm; filaments 1.5-3 mm; anthers ca. 0.5 mm. Fruits pyriform to narrowly so, 3.5-5(-7) × 2-4(-5) mm, apex acute; valves each often with obscure midvein, margin narrowly winged; style 1-3.5 mm. Seeds reddish brown or brown, 0.8-1.4(-1.5) × 0.5-0.6 mm. 2n = 40. Flowering May-Jul. Farms, fields, meadows, prairies, roadsides, forest margins, open woods; 0-2500 m; introduced; Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Sask., Yukon; Ala., Ariz., Calif., Colo., Conn., Del., D.C., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Europe; Asia; n Africa; introduced also in South America.
Annual herb 30 cm - 0.7 m tall Stem: upright, densely covered with simple and star-shaped grayish hairs (mainly on lower part). Flowers: in loosely branched clusters, pale yellow, 4 - 5 mm long, 1.2 mm wide at apex. Petals four. Stamens six. Fruit: a pod, on 4 - 9 mm long stalks, upright, 2.5 - 5 mm long, to 4 mm wide, nearly round but slightly flattened, keeled, with a beak up to 2 mm long. Seeds reddish brown, about 1 mm long, oblong, triangular in cross-section, smooth, slightly glossy. Lower leaves: alternate, 5 - 6 cm long, 1.5 - 2 cm wide, oblong, densely covered with simple and star-shaped grayish hairs. Upper leaves: alternate, stalkless, clasping, smaller than lower leaves (progressively reducing in size), lance-shaped, base lobed (typically pointed), sometimes with a few small teeth along the margins near the tip, hairy.

Similar species: The similar Camelina sativa bears larger fruit.

Flowering: mid-May to mid-July

Habitat and ecology: Introduced from Europe. An infrequent weed of cultivated fields, waste ground, and roadsides. It is also found in nursery plots, sandy fields, and along railroads.

Occurence in the Chicago region: non-native

Notes: This plant is best viewed when the sky is overcast, because the flowers close and shrivel on sunny, warm days.

Etymology: Camelina comes from the Greek words camai, meaning dwarf, and linon, meaning flax (the term "dwarf" being used to mean "false"). Microcarpa means small-fruited.

Author: The Morton Arboretum

Erect, 3-7 dm, rough-hairy; lvs entire or remotely denticulate; frs erect, 2.5-5 mm, obscurely rugulose, on pedicels 4-9 mm; seeds ca 1 mm; 2n=40. Fields and waste places, usually in sandy soil; native of the Old World, established as a casual weed throughout most of the U.S. and s. Can. Apr.-June.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
From Flora of Indiana (1940) by Charles C. Deam
This species is essentially a sandy ballast plant and is more or less frequent throughout the state. I have found it also along sandy roadsides and in sandy, fallow fields where I once found it as an abundant weed.
Camelina microcarpa image
Max Licher  
Camelina microcarpa image
Gregory Gust  
Camelina microcarpa image
Arizona State University Herbarium  
Camelina microcarpa image
Patrick Alexander  
Camelina microcarpa image
Gregory Gust  
Camelina microcarpa image
Patrick Alexander  
Camelina microcarpa image
Gregory Gust  
Camelina microcarpa image
Patrick Alexander  
Camelina microcarpa image
Patrick Alexander  
Camelina microcarpa image
Morton Arboretum  
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image
Camelina microcarpa image