Plantago tweedyi |
Plantago aristata |
|
---|---|---|
Tweedy's plantain |
bottlebrush indianwheat, bract plantain, bristly plantain, large bract plantain |
|
Habit | Perennials; caudex well developed, conspicuous, glabrous; roots taproots, thick. | Annuals; roots taproots, slender. |
Stems | 0–20 mm. |
20–40 mm. |
Leaves | 40–200 × 10–30 mm; blade lanceolate-spatulate to narrowly ovate, margins entire, sometimes toothed, veins conspicuous, surfaces usually glabrous. |
30–200 × 3–7 mm; blade linear or narrowly lanceolate, margins entire, rarely toothed, veins conspicuous or not, abaxial surface villous, adaxial glabrous or sparsely villous. |
Scapes | 25–200 mm, slightly surpassing leaves, glabrous. |
100–500 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, 80–150 mm, densely flowered, flowers in whorls or pairs; bracts almost linear, 15–30 mm, length 2–12 times sepals. |
Flowers | sepals 2–2.5 mm; corolla radially symmetric, lobes spreading, 1 mm, base obtuse; stamens 4. |
sepals 2.7–3.7 mm; corolla bilaterally symmetric, lobes reflexed, adaxials 1.4–2.3 mm, laterals symmetric, base deeply cordate; stamens 4, connective elongated, apex acute. |
Seeds | 3 or 4, 2–2.3 mm. |
2, 2.5–2.9 mm. |
2n | = 24. |
= 20. |
Plantago tweedyi |
Plantago aristata |
|
Phenology | Flowering summer. | Flowering spring–fall. |
Habitat | Grasslands, sagebrush steppes, montane and subalpine meadows. | Roadsides, pastures, disturbed ground. |
Elevation | 1600–4000 m. (5200–13100 ft.) | 0–700 m. (0–2300 ft.) |
Distribution |
AZ; CO; ID; MT; NM; UT; WY
|
AL; AR; CA; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NE; NH; NJ; NM; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; VA; VT; WA; WI; WV; NS; ON [Introduced in Central America, Europe, Asia]
|
Discussion | Plantago aristata is similar to P. patagonica; the latter is distinguished by its dense, villous indument. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 17, p. 293. | FNA vol. 17, p. 284. |
Parent taxa | Plantaginaceae > Plantago | Plantaginaceae > Plantago |
Sibling taxa | ||
Synonyms | P. patagonica var. aristata, P. purshii var. aristata | |
Name authority | A. Gray: in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 390. (1886) | Michaux: Fl. Bor.-Amer. 1: 95. (1803) |
Web links |
|