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Andean pampas grass, jubata grass, purple pampas grass, selloa pampasgrass

Habit Plants pistillate (in North America).

2-7 m, 4-7 times as long as the panicles.


primarily basal;

sheaths hairy, sometimes densely so;

ligules 1-2 mm;

blades 1 m long or longer, 2-10 cm wide, mostly flat, often horizontal, dark green, abaxial surfaces hairy near the base.


30-100 cm, elevated well above the basal foliage, deep violet when young.


14-16 mm, pistillate;

florets readily disarticulating;

calluses about 0.6 mm;

lemmas about 10 mm, long-attenuate to an awn, awns to 1 mm;

paleas to 4 mm, keels ciliate, apical hairs extending beyond the body of the paleas;

stigmas usually not exerted.


to 2.5 mm;

embryos to 1 mm.


= 108.

Cortaderia jubata

from FNA
[WildflowerSearch map]
[BONAP county map]

Cortaderia jubata is found on the west coast of the coterminus United States, growing in disturbed, open ground such as brushy slopes, eroded banks and cliffs, road cuts, cut-over timber areas, and sand dunes. It is native to mountainous areas of Ecuador, Peru, and Bolivia. It was grown in the past as an ornamental because of its attractive panicles, but is now a serious weed in California, reproducing apomictically and invading many open habitats. It was mistakenly called C. rudiuscula Stapf by Hitchcock (1951). The florets of C. rudiuscula differ from those of C. jubata in being longer and narrower, having shorter, less hairy calluses, and in having no hairs that extend beyond the top of the palea. C. rudiuscula is not known from North America.

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

Source FNA vol. 25, p. 299.
Parent taxa Poaceae > subfam. Danthonioideae > tribe Danthonieae > Cortaderia
Sibling taxa
C. selloana
Synonyms C. atacamensis
Name authority (Lemoine ex Carriere) Stapf
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