Jepson Interchange (more information)
Print edition is available from the University of California Press
|
This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants. |
| Jepson Flora Project: Jepson Interchange |
|
|
TREATMENT FROM THE JEPSON MANUAL |
previous taxon |
next taxon
Jepson Interchange (more information) |
|
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press |
| The second edition of The Jepson Manual (2012) is available from the University of California Press | |
| See also the Jepson eFlora, which parallels the Second Edition |
Annual to tree
Stem prostrate to erect
Leaves alternate or opposite, simple, generally entire, bract-like upward; stipules 0
Inflorescence: cymes, often arrayed ± in spikes or panicles; bracts 1–3 per flower, generally membranous-scarious, tip often short-pointed or spine-like
Flower generally small, uni- or bisexual, radial; sepals 0–5, fused at base or free, often ± scarious; petals 0; stamens 0–5, opposite sepals (staminodes sometimes alternating), filaments sometimes fused at base; ovary superior, 1-chambered, ovules 1–several, erect or pendent on ± basal stalks, styles 0–3, stigma head-like or 2–3-lobed
Fruit: utricle to circumscissile capsule
Seed lenticular to spheric, hard
Genera in family: ± 65 genera, ± 900 species: tropical, subtropical
Reference: [Robertson 1981 J Arnold Arbor 62:267–313]
Perennial, prostrate, soft-hairy to tomentose, taprooted
Leaves opposite, unequal at a node; petiole widely winged, clasping; blade entire
Inflorescence: spike, generally in axil of shorter leaf, sessile; bracts unequal, white, glabrous, larger ones falling with fruit
Flower bisexual; calyx bell-shaped, lobes 5, ± = tube, glabrous, scarious, tube densely woolly outside; stamens 5, attached to top of calyx tube, filaments fused at base; staminodia 0; ovary compressed-ovoid, style 1, short, stigma ± 2-lobed
Fruit indehiscent; wall membranous
Seed lenticular to spheric, smooth
Species in genus: ± 5 species: s US to South America
Etymology: (A. Guillemin, French botanist, 1796–1842)
Reference: [Henrickson 1987 Sida 12:307–337]
| YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps). |
|