Plantago tweedyi |
Plantago macrocarpa |
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Tweedy's plantain |
Alaska plantain, seashore plantain |
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Habit | Perennials; caudex well developed, conspicuous, glabrous; roots taproots, thick. | Perennials; caudex well developed, conspicuous, glabrous; roots fibrous, thick. |
Stems | 0–20 mm. |
0–20 mm. |
Leaves | 40–200 × 10–30 mm; blade lanceolate-spatulate to narrowly ovate, margins entire, sometimes toothed, veins conspicuous, surfaces usually glabrous. |
(80–)100–400(–550) × (5–)10–35(–40) mm; blade oblanceolate or almost linear, margins entire, veins conspicuous, 4 or 5, surfaces glabrous. |
Scapes | 25–200 mm, slightly surpassing leaves, glabrous. |
300–400 mm, glabrous or sparsely hairy, becoming densely so distally. |
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, 350–450 mm, loosely flowered; bracts ovate to deltate, 3–4 mm, length 1.5–2.5 times sepals. |
Flowers | sepals 2–2.5 mm; corolla radially symmetric, lobes spreading, 1 mm, base obtuse; stamens 4. |
sepals 1.5–2 mm; corolla radially symmetric, lobes spreading, 1.5–2 mm, base obtuse; stamens 4. |
Fruits | ovoid, indehiscent or dehiscence not circumscissile. |
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Seeds | 3 or 4, 2–2.3 mm. |
1 or 2, 4–5 mm. |
2n | = 24. |
= 24. |
Plantago tweedyi |
Plantago macrocarpa |
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Phenology | Flowering summer. | Flowering late spring–early summer. |
Habitat | Grasslands, sagebrush steppes, montane and subalpine meadows. | Wet places, tidal marshes, saline areas. |
Elevation | 1600–4000 m. (5200–13100 ft.) | 0–700 m. (0–2300 ft.) |
Distribution |
AZ; CO; ID; MT; NM; UT; WY
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AK; OR; WA; BC; Asia
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Discussion | Plantago macrocarpa has been documented along the Pacific coast south to the mouth of the Yachats River in Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 17, p. 293. | FNA vol. 17, p. 289. |
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) | Chamisso & Schlechtendal: Linnaea 1: 166. (1826) |
Web links |
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