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Mexican plantain

Habit Perennials; caudex glabrous; roots fibrous, stout.

0–10 mm.


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.


30–560 mm, hairy, hairs antrorse, short.


greenish or brownish, 100–1000 mm, densely flowered;

bracts narrowly triangular, 1.6–4.2 mm, length 0.8–1.5 times sepals.


sepals 2–2.5 mm;

corolla radially symmetric, lobes erect, forming a beak, 2–2.8 mm, base obtuse;

stamens 4.


3, 1.2–2.2 mm.


= 24.

Plantago australis

Phenology Flowering summer.
Habitat Open places.
Elevation 0–1000 m. (0–3300 ft.)
from FNA
AZ; Mexico; Central America; South America
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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. 284.
Parent taxa Plantaginaceae > Plantago
Sibling taxa
P. afra, P. argyrea, P. aristata, 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. tweedyi, P. virginica, P. wrightiana
Synonyms P. australis subsp. hirtella, P. hirtella, P. hirtella var. galeottiana, P. hirtella var. mollior
Name authority Lamarck: in J. Lamarck and J. L. M. Poiret, Tabl. Encycl. 1: 339. (1792)
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