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Tweedy's plantain

Habit Perennials; caudex well developed, conspicuous, glabrous; roots taproots, thick.
Stems

0–20 mm.

Leaves

40–200 × 10–30 mm;

blade lanceolate-spatulate to narrowly ovate, margins entire, sometimes toothed, veins conspicuous, surfaces usually glabrous.

Scapes

25–200 mm, slightly surpassing leaves, glabrous.

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.

Flowers

sepals 2–2.5 mm;

corolla radially symmetric, lobes spreading, 1 mm, base obtuse;

stamens 4.

Seeds

3 or 4, 2–2.3 mm.

2n

= 24.

Plantago tweedyi

Phenology Flowering summer.
Habitat Grasslands, sagebrush steppes, montane and subalpine meadows.
Elevation 1600–4000 m. (5200–13100 ft.)
Distribution
from FNA
AZ; CO; ID; MT; NM; UT; WY
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 17, p. 293.
Parent taxa Plantaginaceae > Plantago
Sibling taxa
P. afra, P. argyrea, P. aristata, P. australis, P. canescens, P. cordata, P. coronopus, P. elongata, P. erecta, P. eriopoda, P. firma, P. floccosa, P. helleri, P. heterophylla, P. hookeriana, P. indica, P. lanceolata, P. macrocarpa, P. major, P. maritima, P. media, P. ovata, P. patagonica, P. pusilla, P. rhodosperma, P. rugelii, P. sempervirens, P. sparsiflora, P. subnuda, P. virginica, P. wrightiana
Name authority A. Gray: in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 390. (1886)
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