Microseris bigelovii

Microseris bigelovii (A. Gray) Sch. Bip.:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Annuals, 3–60 cm; taprooted . Stems 0. Leaves basal; petiolate. blades linear to narrowly elliptic or spatulate, 3–25 cm, margins entire, dentate, or pinnately lobed, apices acuminate to obtuse, faces glabrous or lightly scurfy-puberulent . Peduncles erect or curved-ascending. ebracteate. Involucres ovoid to fusiform in fruit, 5–14 mm. Phyllaries: apices acute to acuminate, faces glabrous; outer deltate; inner lanceolate (midveins often purple, thickened). Florets 5–100; corollas yellow or orange, equaling or surpassing phyllaries by 1–3 mm . Cypselae truncate-fusiform, 2.5–5.5 mm; pappi of 5 silvery to blackish, deltate to lanceolate, aristate scales 1–4 mm (slightly arched at bases, flat, glabrous, midveins linear, widths less than ¹/5 bodies, thicker at bases), aristae (brown, fine) barbellulate. 2n = 18.

Calaïs bigelovii A. Gray in War Department [U.S.], Pacif. Railr. Rep. 4(5): 113, plate 17, figs. 1–5. 1857

Canada

Rounded National Status Rank: N1 - Critically Imperiled

United States

Rounded National Status Rank: NNR - Unranked

Rounded Global Status Rank: G4 - Apparently Secure