Plantago aristata |
Plantago cordata |
|
---|---|---|
bottlebrush indianwheat, bract plantain, bristly plantain, large bract plantain |
heart-leaf plantain |
|
Habit | Annuals; roots taproots, slender. | Perennials; caudex well developed, conspicuous, glabrous; roots fibrous, thick. |
Stems | 20–40 mm. |
0–20 mm. |
Leaves | 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. |
100–300 × 80–200 mm; petiole to 300 mm; blade broadly oval to cordate-ovate, margins entire, veins conspicuous, laterals branching from midvein distal to base, surfaces glabrous. |
Scapes | 100–500 mm, hairy, hairs antrorse, long and short. |
200–300 mm, glabrous. |
Spikes | greenish or brownish, 80–150 mm, densely flowered, flowers in whorls or pairs; bracts almost linear, 15–30 mm, length 2–12 times sepals. |
brownish or greenish, 100–500 mm, loosely flowered, rachis visible between flowers; bracts round-ovate, 2 mm, length 0.8–1 times sepals. |
Flowers | 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. |
sepals 2–2.5 mm; corolla radially symmetric, lobes spreading, 2–2.5 mm, base obtuse; stamens 4. |
Seeds | 2, 2.5–2.9 mm. |
2–4, 2.5–3.5 mm. |
2n | = 20. |
= 24. |
Plantago aristata |
Plantago cordata |
|
Phenology | Flowering spring–fall. | Flowering late spring–early summer. |
Habitat | Roadsides, pastures, disturbed ground. | Rocky or gravelly beds of shallow, slow-moving streams, sloughs, swamps. |
Elevation | 0–700 m. (0–2300 ft.) | 0–200 m. (0–700 ft.) |
Distribution |
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]
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AL; AR; DC; FL; GA; IA; IL; IN; KY; MD; MI; MO; MS; NC; NY; OH; TN; VA; WI; ON
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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.) |
Plantago cordata is listed as federally endangered in Canada and is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 284. | FNA vol. 17, p. 285. |
Parent taxa | Plantaginaceae > Plantago | Plantaginaceae > Plantago |
Sibling taxa | ||
Synonyms | P. patagonica var. aristata, P. purshii var. aristata | |
Name authority | Michaux: Fl. Bor.-Amer. 1: 95. (1803) | Lamarck: in J. Lamarck and J. L. M. Poiret, Tabl. Encycl. 1: 338. (1792) |
Web links |
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