|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Perennial herb, from rhizome or bulb, or rhizomes ending in weakly developed bulbs, scapose or not. Leaf: alternate, whorled, or mostly basal and spirally arranged, deciduous after 1 year or not. Inflorescence: raceme, panicle, or flowers 1. Flower: perianth parts 6, in 2 petal-like whorls or of sepals and petals, free or fused below, ± spreading; stamens 6, from perianth, anthers attached at base or near middle; ovary superior or partly inferior, chambers 3, styles 3, persistent. Fruit: capsule, loculicidal or septicidal.
10 genera, 130 species: northern hemisphere. W North America Zigadenus moved to Toxicoscordion. —Scientific Editors: Dale W. McNeal, Thomas J. Rosatti.
Key to Melanthiaceae
Plant non-flowering for several years, stalk dying after fruiting; rhizome woody, tuber-like. Stem: stout, simple, leafy. Leaf: persistent, wiry, tough, grass-like, strongly scabrous. Inflorescence: raceme, dense, ± club-shaped, longer (to 50 cm) in fruit. Flower: perianth parts free, oblong to ovate, persistent, ± white to cream, 5–7-veined; filaments wider at base, anthers attached near middle; style short, stigmas thread-like. Fruit: 3-angled, loculicidal. Seed: 9–18, oblong, 3-angled, black.
2 species: North America. (Greek: dry leaf, from tough, persistent leaves) [Fay et al. 2006 Aliso 22:559–565]
Unabridged references: [Fay, M. F., et al. 2006 Phylogenetics of Liliales: summarized evidence from combined analysis of five plastid and one mitochondrial loci. Aliso 22:559–565]
Stem: 15–150 cm. Leaf: basal in dense clump, 30–100 cm, 2–6 mm wide; cauline many, reduced upward. Inflorescence: pedicels 2–5 cm, spreading to ± erect. Flower: 5–10 mm; perianth parts ± oblong; style ± 1 mm, stigma branches 2–4 mm. Fruit: 5–7 mm.
n=15. Dry open slopes, ridges, montane conifer forest; < 2300 m. Klamath Ranges, Outer North Coast Ranges, High Cascade Range, n High Sierra Nevada, Central Coast, San Francisco Bay Area; to British Columbia, Montana, Wyoming. May–Aug [Online Interchange]
Previous taxon: Xerophyllum
Next taxon: Nartheciaceae
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 30 2015
Citation for this treatment: [Author of taxon treatment] 2013. Xerophyllum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=48666, accessed on May 30 2015
Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
See CalPhotos for additional images
© 1995 Saint Mary's College of California
|Geographic subdivisions indicated for the distribution of Xerophyllum tenax|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
View elevation by latitude chart
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records
CCH collections by month