Plantago tweedyi |
Plantago wrightiana |
|
---|---|---|
Tweedy's plantain |
Wright's plantain |
|
Habit | Perennials; caudex well developed, conspicuous, glabrous; roots taproots, thick. | Annuals; roots taproots, slender. |
Stems | 0–20 mm. |
10–40 mm. |
Leaves | 40–200 × 10–30 mm; blade lanceolate-spatulate to narrowly ovate, margins entire, sometimes toothed, veins conspicuous, surfaces usually glabrous. |
60–160 × 3–5 mm; blade linear, margins entire, veins conspicuous or not, abaxial surface villous, adaxial glabrous, rarely sparsely villous. |
Scapes | 25–200 mm, slightly surpassing leaves, glabrous. |
800–1600 mm, hairy, hairs antrorse, long and short. |
Spikes | brownish or greenish, 45–250 mm, densely flowered, rachis not clearly visible between flowers; bracts broadly ovate, 2 mm, length 0.8–1 times sepals. |
greenish or brownish, (20–)150–250 mm, densely flowered, flowers in whorls or pairs; bracts ovate or triangular, 1–3.5 mm, length 0.4–0.8 times sepals. |
Flowers | sepals 2–2.5 mm; corolla radially symmetric, lobes spreading, 1 mm, base obtuse; stamens 4. |
sepals 3–4 mm; corolla bilaterally symmetric, lobes reflexed, adaxials 2.4–3 mm, laterals asymmetric, base cordate; stamens 4, connective elongated, apex acute. |
Seeds | 3 or 4, 2–2.3 mm. |
2, 2.8–3.2 mm. |
2n | = 24. |
= 20. |
Plantago tweedyi |
Plantago wrightiana |
|
Phenology | Flowering summer. | Flowering summer. |
Habitat | Grasslands, sagebrush steppes, montane and subalpine meadows. | Sandy and gravelly soils, roadsides. |
Elevation | 1600–4000 m. (5200–13100 ft.) | 0–1000(–1300) m. (0–3300(–4300) ft.) |
Distribution |
AZ; CO; ID; MT; NM; UT; WY
|
AL; AR; AZ; FL; GA; KS; KY; LA; MD; MS; NC; NM; OK; SC; TN; TX; VA; WV; Mexico (Chihuahua, Durango)
|
Source | FNA vol. 17, p. 293. | FNA vol. 17, p. 293. |
Parent taxa | Plantaginaceae > Plantago | Plantaginaceae > Plantago |
Sibling taxa | ||
Name authority | A. Gray: in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 390. (1886) | Decaisne: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 13(1): 712. (1852) |
Web links |