Berteroa incana
Syst. Nat. 2: 291. 1821.
Plants densely pubescent, trichomes appressed, stellate mixed with simple ones. Stems simple or few from base, (2–)3–8(–11) dm. Basal leaves (withered by flowering): blade oblanceolate, (2.5–)3.5–8(–10) cm, base cuneate or attenuate, apex obtuse. Cauline leaves: blade apex acute or obtuse. Fruiting pedicels appressed to rachis, (4–)5–9(–12) mm. Flowers: sepals 2–2.5 mm; petals narrowly obcordate, (4–)5–6.5(–8) mm (lobes oblong, (1–)1.5–3 × 0.5–1.5 mm); filaments white, median pair 2–3.3 mm, lateral pair 0.3–1 mm; anthers 0.5–1 mm. Fruits (4–)5–8.5(–10) × (2–)2.5–4 mm; valves obtuse at both ends, trichomes sometimes with unequal rays; style 1–4 mm, sparsely pubescent basally. Seeds slightly flattened, narrowly margined, 1–2.3 mm diam. 2n = 16.
Phenology: Flowering May–Sep.
Habitat: Flood plains, meadows, waste places, railroad embankments, woodlands, grasslands, roadsides, fields, stream banks, pastures, hillsides, forest floor
Elevation: 0-2800 m
Distribution
B.C., Man., N.B., Ont., Que., Sask., Ariz., Calif., Colo., Conn., D.C., Idaho, Ill., Ind., Iowa, Kans., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Europe, Asia.
Discussion
Selected References
None.