Plantago firma

Kunze ex Walpers

Nov. Actorum Acad. Caes. Leop. Carol. Nat. Cur. 19, suppl. 1: 402. 1843.

Common names: Chilean plantain
Introduced
Synonyms: Plantago truncata subsp. firma (Kunze ex Walpers) Pilger
Treatment appears in FNA Volume 17. Treatment on page 286. Mentioned on page 283.
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Annuals; roots taproots, slender. Stems 0–10 mm. Leaves 20–50 × 2–15 mm; blade narrowly obovate or narrowly elliptic, margins toothed, veins conspicuous, surfaces densely pilose or glabrate. Scapes 10–50 mm, hairy, hairs appressed or nearly patent. Spikes greenish or brownish, 40–60 mm, densely flowered; bracts triangular, 2–3.1 mm, length 0.7–1.1 times sepals. Flowers: sepals 1.8–2.8 mm; corolla radially symmetric, lobes patent or erect, forming a beak, 1.7–3.1 mm, base obtuse; stamens 4. Seeds 2, 1.5–2.2 mm, adaxial face flat. 2n = 24.


Phenology: Flowering fall.
Habitat: Sandy soils.
Elevation: 0–1000 m.

Distribution

Introduced; Calif., South America (Chile).

Discussion

Plantago firma has been known in California, especially in Marin County, since at least 1896, but the most recent collection known was made in 1957.

Selected References

None.

Lower Taxa

None.