Plantago macrocarpa |
Plantago subnuda |
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Alaska plantain, seashore plantain |
coastal plantain, Mexican plantain, tall coastal plantain |
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Habit | Perennials; caudex well developed, conspicuous, glabrous; roots fibrous, thick. | Perennials; caudex well developed, conspicuous, glabrous or hairy; roots taproots, fragile. |
Stems | 0–20 mm. |
0–10 mm. |
Leaves | (80–)100–400(–550) × (5–)10–35(–40) mm; blade oblanceolate or almost linear, margins entire, veins conspicuous, 4 or 5, surfaces glabrous. |
60–360 × 15–65 mm; blade elliptic to narrowly elliptic, margins toothed, veins conspicuous, surfaces pilose, rarely glabrate, adaxial surface hairs not floccose, less than 2 mm long, more than 0.03 mm wide. |
Scapes | 300–400 mm, glabrous or sparsely hairy, becoming densely so distally. |
55–360 mm, hairy, hairs antrorse, long. |
Spikes | greenish or brownish, 350–450 mm, loosely flowered; bracts ovate to deltate, 3–4 mm, length 1.5–2.5 times sepals. |
greenish or brownish, 110–720 mm, densely or loosely flowered; bracts ovate, rarely triangular, 2.5–4 mm, length 0.8–1.3 times sepals. |
Flowers | sepals 1.5–2 mm; corolla radially symmetric, lobes spreading, 1.5–2 mm, base obtuse; stamens 4. |
sepals 2.6–3.1 mm; corolla radially symmetric, lobes erect, forming a beak, 2.4–2.7 mm, base obtuse; stamens 4. |
Fruits | ovoid, indehiscent or dehiscence not circumscissile. |
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Seeds | 1 or 2, 4–5 mm. |
3, 1.8–2.5 mm. |
2n | = 24. |
= 48. |
Plantago macrocarpa |
Plantago subnuda |
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Phenology | Flowering late spring–early summer. | Flowering late spring–fall. |
Habitat | Wet places, tidal marshes, saline areas. | Moist ground. |
Elevation | 0–700 m. (0–2300 ft.) | 0–300 m. (0–1000 ft.) |
Distribution |
AK; OR; WA; BC; Asia
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CA; OR; WA
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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.) |
Plantago subnuda occurs primarily in counties along the Pacific coast from southwestern Washington to southern California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 289. | FNA vol. 17, p. 293. |
Parent taxa | Plantaginaceae > Plantago | Plantaginaceae > Plantago |
Sibling taxa | ||
Name authority | Chamisso & Schlechtendal: Linnaea 1: 166. (1826) | Pilger: Notizbl. Königl. Bot. Gart. Berlin 5: 260. (1912) |
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