Plantago canescens |
Plantago macrocarpa |
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arctic plantain, gray-pubescent plantain, Siberian plantain |
Alaska plantain, seashore plantain |
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Habit | Perennials; caudex usually woolly; roots taproots, thick. | Perennials; caudex well developed, conspicuous, glabrous; roots fibrous, thick. |
Stems | 0–20 mm. |
0–20 mm. |
Leaves | ascending, 180–250 × 6–20 mm; blade linear to lanceolate or oblanceolate, margins entire, rarely toothed, veins conspicuous, surfaces glabrate or hairy, hairs 1 mm. |
(80–)100–400(–550) × (5–)10–35(–40) mm; blade oblanceolate or almost linear, margins entire, veins conspicuous, 4 or 5, surfaces glabrous. |
Scapes | 50–230 mm, not groove-angled, hairy or glabrous. |
300–400 mm, glabrous or sparsely hairy, becoming densely so distally. |
Spikes | grayish or whitish, 80–350 mm, usually densely flowered, shiny; corolla lobes of neighboring flowers often overlapping; bracts broadly ovate, 1.8–2 mm, length 0.9–1 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 mm, adaxial 2 nearly distinct; corolla radially symmetric, lobes reflexed, 2 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 | 3–7, 1–1.8 mm. |
1 or 2, 4–5 mm. |
2n | = 12. |
= 24. |
Plantago canescens |
Plantago macrocarpa |
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Phenology | Flowering summer. | Flowering late spring–early summer. |
Habitat | Grassy, gravelly, and rocky slopes, cliffs. | Wet places, tidal marshes, saline areas. |
Elevation | 0–2000 m. (0–6600 ft.) | 0–700 m. (0–2300 ft.) |
Distribution |
AK; MT; AB; BC; NT; NU; YT; Asia |
AK; OR; WA; BC; Asia
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Discussion | N. N. Tzvelev (1983) recognized six subspecies (including two in North America) within Plantago canescens; North American material is not segregated as such here. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 285. | FNA vol. 17, p. 289. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | P. septata | |
Name authority | Adams: Nouv. Mém. Soc. Imp. Naturalistes Moscou 9: 233, plate 13, fig. 1. (1834) | Chamisso & Schlechtendal: Linnaea 1: 166. (1826) |
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