Plantago macrocarpa |
Plantago australis |
|
---|---|---|
Alaska plantain, seashore plantain |
Mexican plantain |
|
Habit | Perennials; caudex well developed, conspicuous, glabrous; roots fibrous, thick. | Perennials; caudex glabrous; roots fibrous, stout. |
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. |
40–350 × 6–77 mm; blade elliptic to narrowly elliptic, margins entire, 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. |
30–560 mm, hairy, hairs antrorse, 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, 100–1000 mm, densely flowered; bracts narrowly triangular, 1.6–4.2 mm, length 0.8–1.5 times sepals. |
Flowers | sepals 1.5–2 mm; corolla radially symmetric, lobes spreading, 1.5–2 mm, base obtuse; stamens 4. |
sepals 2–2.5 mm; corolla radially symmetric, lobes erect, forming a beak, 2–2.8 mm, base obtuse; stamens 4. |
Fruits | ovoid, indehiscent or dehiscence not circumscissile. |
|
Seeds | 1 or 2, 4–5 mm. |
3, 1.2–2.2 mm. |
2n | = 24. |
= 24. |
Plantago macrocarpa |
Plantago australis |
|
Phenology | Flowering late spring–early summer. | Flowering summer. |
Habitat | Wet places, tidal marshes, saline areas. | Open places. |
Elevation | 0–700 m. (0–2300 ft.) | 0–1000 m. (0–3300 ft.) |
Distribution |
AK; OR; WA; BC; Asia
|
AZ; Mexico; Central America; South America
|
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 australis occurs in Cochise, Coconino, and Pima counties. Plantago australis is most diverse in South America, where as many as 16 subspecies (K. Rahn 1974) may be recognized. Plants from California identified as P. hirtella are most likely P. subnuda. However, since the most important distinguishing character of P. australis is the absence of the developed taproot (which is fragile and often broken in herbarium specimens), all these samples require careful examination. Further research is needed also to clarify the circumscriptions of P. australis and P. subnuda. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 289. | FNA vol. 17, p. 284. |
Parent taxa | Plantaginaceae > Plantago | Plantaginaceae > Plantago |
Sibling taxa | ||
Synonyms | P. australis subsp. hirtella, P. hirtella, P. hirtella var. galeottiana, P. hirtella var. mollior | |
Name authority | Chamisso & Schlechtendal: Linnaea 1: 166. (1826) | Lamarck: in J. Lamarck and J. L. M. Poiret, Tabl. Encycl. 1: 339. (1792) |
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