Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Dale W. McNeal, except as specified

Perennial to trees, from membranous bulb, fibrous corm, scaly rhizome, or erect caudex
Stem generally underground
Leaves generally basal, often withering early, alternate, generally ± linear
Inflorescence various, generally bracted
Flower generally bisexual, generally radial; perianth often showy, segments generally 6 in two petal-like whorls (outer sometimes sepal-like), free or fused at base; stamens 6 (or 3 + generally 3 ± petal-like staminodes), filaments sometimes attached to perianth or fused into a tube or crown; ovary superior or inferior, chambers 3, placentas generally axile, style generally 1, stigmas generally 3
Fruit: generally capsule, loculicidal or septicidal (berry or nut)
Genera in family: ± 300 genera, 4600 species: especially ± dry temp and subtropical; many cultivated for ornamental or food; some TOXIC. Here includes genera sometimes treated in Agavaceae, Amaryllidaceae, and other families.



Annual or perennial herb from rhizomes
Leaves basal, spiral, linear
Inflorescence: raceme or panicle, dense; bracts persistent, narrowly lanceolate, scarious; pedicels jointed
Flower small; perianth parts 6, ± free, in 2 petal-like whorls, white or pinkish; stamens 6, filaments wider at base; ovary superior, chambers 3, stigma head-like, slightly 3-lobed
Fruit: capsule, loculicidal
Seeds 6, black
Species in genus: 12 species: s Eur
Etymology: (Greek: ancient name)


A. fistulosus L.

Annual or short-lived perennial herb; roots many from ± tuber-like stem bases
Stem 15–70 cm, branched, hollow
Leaves many, 10–30 cm, ± 4 mm diam, subcylindric, hollow; bases wide, membranous
Inflorescence: panicle, open
Flower 5–12 mm; perianth parts oblong, obtuse; stamens included, of 2 lengths, longest = style
Fruit 5–7 mm, ± spheric
Seeds 3–4 mm
Chromosomes: 2n=28,56
Ecology: Disturbed areas, fields
Elevation: < 50 m.
Bioregional distribution: s San Joaquin Valley, South Coast (expected elsewhere)
Distribution outside California: native to s Europe

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