Plantago macrocarpa |
Plantago wrightiana |
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Alaska plantain, seashore plantain |
Wright's plantain |
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Habit | Perennials; caudex well developed, conspicuous, glabrous; roots fibrous, thick. | Annuals; roots taproots, slender. |
Stems | 0–20 mm. |
10–40 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. |
60–160 × 3–5 mm; blade linear, margins entire, veins conspicuous or not, abaxial surface villous, adaxial glabrous, rarely sparsely villous. |
Scapes | 300–400 mm, glabrous or sparsely hairy, becoming densely so distally. |
800–1600 mm, hairy, hairs antrorse, long and short. |
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, (20–)150–250 mm, densely flowered, flowers in whorls or pairs; bracts ovate or triangular, 1–3.5 mm, length 0.4–0.8 times sepals. |
Flowers | sepals 1.5–2 mm; corolla radially symmetric, lobes spreading, 1.5–2 mm, base obtuse; stamens 4. |
sepals 3–4 mm; corolla bilaterally symmetric, lobes reflexed, adaxials 2.4–3 mm, laterals asymmetric, base cordate; stamens 4, connective elongated, apex acute. |
Fruits | ovoid, indehiscent or dehiscence not circumscissile. |
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Seeds | 1 or 2, 4–5 mm. |
2, 2.8–3.2 mm. |
2n | = 24. |
= 20. |
Plantago macrocarpa |
Plantago wrightiana |
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Phenology | Flowering late spring–early summer. | Flowering summer. |
Habitat | Wet places, tidal marshes, saline areas. | Sandy and gravelly soils, roadsides. |
Elevation | 0–700 m. (0–2300 ft.) | 0–1000(–1300) m. (0–3300(–4300) ft.) |
Distribution |
AK; OR; WA; BC; Asia
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AL; AR; AZ; FL; GA; KS; KY; LA; MD; MS; NC; NM; OK; SC; TN; TX; VA; WV; Mexico (Chihuahua, Durango)
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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. 289. | FNA vol. 17, p. 293. |
Parent taxa | Plantaginaceae > Plantago | Plantaginaceae > Plantago |
Sibling taxa | ||
Name authority | Chamisso & Schlechtendal: Linnaea 1: 166. (1826) | Decaisne: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 13(1): 712. (1852) |
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