|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 |
Annual, perennial herb, shrub, tree. Stem: 4-angled or cylindric. Leaf: simple, entire, generally opposite, 4-ranked (alternate, whorled). Inflorescence: flowers terminal or in axils of upper leaves or leaf-like bracts, 1 or in ± dense cymes or along short shoots, sessile or not, subtended by 2 bractlets. Flower: bisexual, generally radial; hypanthium bell-shaped to cylindric, membranous or leathery, persistent in fruit; sepals appearing as hypanthium lobes, 4–9, epicalyx lobes alternate sepals or 0; petals, stamens inserted on inner hypanthium; petals 4–6 or 0, alternate sepals, crinkled, deciduous; stamens generally = or 2 × sepals, included or exserted; ovary generally superior, chambers 2–6[many], style generally slender, stigma head-like. Fruit: dry capsule or leathery berry, dehiscent into 2–4 valves or irregularly. Seed: 3–many.
± 28 genera, 600 species: temperate, tropics, generally in wet habitats. Some ornamental or cultivated for medicine, dyes. [Graham et al. 2005 Int J Plant Sci 166:995–1017] "Epicalyx lobes" (lobes on calyx) formerly called "appendages," "hypanthium" in Lythraceae (and Onagraceae) including receptacle, sometimes called "flower cup" or "flower tube". Punicaceae (Punica) included here. —Scientific Editor: Thomas J. Rosatti.
Key to Lythraceae
Annual, perennial herb. Stem: prostrate to erect, often 4-angled. Leaf: opposite, alternate, or whorled, linear to ovate or obovate, petiole 0 to short. Inflorescence: flowers generally 1–2 per axil, sessile or not. Flower: radial to ± bilateral, of 1–3 style forms (heterostylous); hypanthium cylindric or bell-shaped, ribs generally conspicuous; sepals 4–6, deltate, epicalyx lobes < to > sepals; petals 4–6 or 0; stamens 4–6 or 12, included or exserted; styles < to > stamens. Fruit: capsule, generally cylindric, rarely spheric, valves 2. Seed: many, < 1 mm.Key to Lythrum
± 35 species: temperate. (Greek: clotted blood) [Houghton-Thompson et al. 2005 Ann Bot (London) 96:877–885]
Unabridged etymology: (Greek: clotted blood, from use of Lythrum salicaria, the first named sp., to stop hemorrhaging, according to Gerard, Bull Torrey Bot Club 12: 60. 1885)
Annual, not heterostylous. Stem: 5–30 cm, glabrous to ± scabrous; branches often at base, decumbent to weakly ascending or erect. Leaf: 0.3–2.5 cm, lower opposite; upper alternate, oblong to oblanceolate. Inflorescence: flowers 1 per axil on main shoots and on short axillary shoots, ± sessile; ± glandular. Flower: hypanthium 5–6 mm, narrowly cylindric, 8–10 × longer than wide; sepals, epicalyx lobes ± 0.5 mm, thick; petals < 3 mm, lavender; stamens 4–6, included; style included. Fruit: cylindric, ± = hypanthium.
n=5. Wet areas, drying ponds; < 1500 m. Inner North Coast Ranges, Great Central Valley, Central Coast, San Francisco Bay Area, n Modoc Plateau; native to southern Europe. May–Jun [Online Interchange]
Previous taxon: Lythrum salicaria
Next taxon: Punica
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Feb 1 2015
Citation for this treatment: [Author of taxon treatment] 2013. Lythrum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32409, accessed on Feb 1 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.
|Geographic subdivisions indicated for the distribution of Lythrum tribracteatum|| 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