Berteroa incana

(Linnaeus) de Candolle

Syst. Nat. 2: 291. 1821.

WeedyIntroducedIllustrated
Basionym: Alyssum incanum Linnaeus Sp. Pl. 2: 650. 1753
Treatment appears in FNA Volume 7. Treatment on page 253. Mentioned on page 252.

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

V7 329-distribution-map.gif

Introduced; 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.

Lower Taxa

None.
... more about "Berteroa incana"
Ihsan A. Al-Shehbaz +
(Linnaeus) de Candolle +
Alyssum incanum +
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 +  and Asia. +
0-2800 m +
Flood plains, meadows, waste places, railroad embankments, woodlands, grasslands, roadsides, fields, stream banks, pastures, hillsides, forest floor +
Flowering May–Sep. +
Weedy +, Introduced +  and Illustrated +
Cruciferae +
Berteroa incana +
Berteroa +
species +