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Tweedy's plantain

floccose plantain

Habit Perennials; caudex well developed, conspicuous, glabrous; roots taproots, thick. Perennials; caudex well developed, conspicuous, glabrous or hairy; roots several taproots, fragile.
Stems

0–20 mm.

0–30 mm.

Leaves

40–200 × 10–30 mm;

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

50–220 × 9–60 mm;

blade elliptic to narrowly elliptic, margins with inconspicuous teeth, veins conspicuous, surfaces hairy, adaxial surface hairs floccose, slender, 4–6 × 0.01–0.03 mm.

Scapes

25–200 mm, slightly surpassing leaves, glabrous.

55–220 mm, lanate, hairs variously directed, long.

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.

greenish or brownish, 200–500 mm, densely flowered, flowers less crowded proximally;

bracts narrowly triangular or triangular, 2–2.8 mm, lengths 0.9–1 times sepals.

Flowers

sepals 2–2.5 mm;

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

stamens 4.

sepals 1.9–2.7 mm;

corolla radially symmetric, lobes erect, forming a beak, 2–2.9 mm, base obtuse;

stamens 4.

Seeds

3 or 4, 2–2.3 mm.

3, 1.8–2.4 mm.

2n

= 24.

Plantago tweedyi

Plantago floccosa

Phenology Flowering summer. Flowering spring–fall.
Habitat Grasslands, sagebrush steppes, montane and subalpine meadows. Roadsides.
Elevation 1600–4000 m. (5200–13100 ft.) 0–300 m. (0–1000 ft.)
Distribution
from FNA
AZ; CO; ID; MT; NM; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
FL; Mexico (Hidalgo, México, Querétaro, San Luis Potosi, Tamaulipas, Veracruz) [Introduced in North America]
[BONAP county map]
Discussion

According to J. Burkhalter (pers. comm.), Plantago floccosa is well established in northwestern Florida near the border with Alabama.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 17, p. 293. FNA vol. 17, p. 287.
Parent taxa Plantaginaceae > Plantago 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
P. afra, P. argyrea, P. aristata, P. australis, P. canescens, P. cordata, P. coronopus, P. elongata, P. erecta, P. eriopoda, P. firma, 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. tweedyi, P. virginica, P. wrightiana
Name authority A. Gray: in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 390. (1886) Decaisne: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 13(1): 723. (1852)
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