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
Leaves simple to pinnately to palmately compound, generally alternate; stipules free to fused, persistent to deciduous
Inflorescence: cyme, raceme, panicle, or flowers solitary
Flower generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, often with bractlets alternate with sepals; sepals generally 5; petals generally 5, free; stamens (0)5–many, pistils (0)1–many, simple or compound; ovary superior to inferior, styles 1–5
Fruit: achene, follicle, drupe, pome, or blackberry- to raspberry-like
Seeds generally 1–5
Genera in family: 110 genera, ± 3000 species: worldwide, especially temp. Many cultivated for ornamental and fruit, especially Cotoneaster , Fragaria , Malus , Prunus , Pyracantha, Rosa , and Rubus
Reference: [Robertson 1974 J Arnold Arbor 55:303–332,344–401,611–662]
Family description, key to genera by Barbara Ertter and Dieter H. Wilken.
Annual or perennial herb, sometimes monoecious; hairs 0 or partitioned, not glandular
Leaves alternate, odd-1-pinnate; leaflets generally evenly toothed or lobed
Inflorescence: spikes 1–many, head-like; peduncles long
Flowers bisexual (or upper pistillate, lower staminate); hypanthium urn-shaped; bractlets 0; sepals generally 4; petals 0; stamens 0–many; pistils 0–3, ovaries superior, continuous to style at top, stigma generally ± shrub-like, exserted
Fruit: hypanthium hard, 4-angled, enclosing achenes
Species in genus: ± 25 species: n temp, arctic
Etymology: (Latin: blood-absorbing, from styptic properties)
Reference: [Nordberg 1966 Opera Bot 11(2):1–103]
| Introduced |
Perennial, tufted, taprooted
Stem erect, generally 2–7 cm
Leaves: basal present at flower, largest generally 4–20 cm; leaflets 4–10 per side, largest blade generally 5–20 mm, round-oblong, stalk generally 1–4 mm, teeth generally < 15, < 1/3 to midvein
Inflorescence 7–30 mm, 6–20 mm wide, ovoid-spheric, ± 5–30-flowered
Flower: sepals 3–6 mm, elliptic, green or purplish; stamens many, filaments thread-like
Fruit ± 5 mm; angles equally short-winged; faces with raised bumpy network
Chromosomes: n=14,28
Ecology: Open, especially disturbed areas
Elevation: 30–1600 m.
Bioregional distribution: California Floristic Province (except High Sierra Nevada)
Distribution outside California: to e US; native to Europe
Often used in seeding mixtures after fires and in pastures.
| 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). |
|