Jepson Interchange (more information)
Print edition is available from the University of California Press
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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 |
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TREATMENT FROM THE JEPSON MANUAL |
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Jepson Interchange (more information) |
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©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 basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1–many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1–many per head
Flowers bisexual, unisexual, or sterile, ± small, of several types; calyx 0 or modified into pappus of bristles, scales, or awns, which is generally persistent in fruit; corolla radial or bilateral (rarely 0), lobes generally (0)4–5; stamens 4–5, anthers generally fused into cylinder around style, often appendaged at tips, bases, or both, filaments generally free, generally attached to corolla near throat; pistil 1, ovary inferior, 1-chambered, 1-seeded, style 1, branches 2, generally hair-tufted at tip, stigmas 2, generally on inside of style branches
Fruit: achene, cylindric to ovoid, generally deciduous with pappus attached
Genera in family: ± 1300 genera, 21,000 species (largest family of dicots): worldwide. Largest family in CA. Also see tribal key to CA genera: Strother 1997 Madroño 44(1):1–28. See glossary p. 25 for illustrations of general family characteristics.
Perennial from fleshy taproot; caudices 1–many
Stems erect
Leaves ± basal, few cauline, long-petioled; blade entire to 1–3-pinnately lobed
Inflorescence: heads 1–few, radiate; peduncles long, bracts 0–few; involucre hemispheric to bell-shaped; phyllaries in 2–4 series; receptacle flat; chaff folded around fruits
Ray flowers showy; ligules yellow
Disk flowers many; corollas yellow, tube short, throat cylindric to narrowly bell-shaped; style branches tapered
Fruit oblong, 3–4-angled; pappus 0
Species in genus: ± 12 species: w North America
Etymology: (Greek: balsam root, from sticky sap of taproot)
Reference: [Weber 1982 Phytologia 50:357–359]
Hybrids common. Horticultural information: TRY.
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Stems 2–4 dm
Leaves: basal 10–30 cm, blade lanceolate to elliptic, pinnately lobed (lobes generally entire), finely silvery canescent; cauline generally 2–3 near base
Inflorescence: head 1; outer phyllaries 15–20 mm, generally 7–8 mm wide, widely ovate, tip wide, flat, obtuse to acute, appressed to spreading, finely strigose, minutely glandular
Ray flowers: ligules 2–3 cm
Disk flowers: corollas 7–10 mm
Fruit 5–8 mm
Ecology: UNCOMMON
Elevation:
Bioregional distribution: e Klamath Ranges (Siskiyou, Trinity cos.)
Distribution outside California: sw Oregon
Perhaps not distinct from B. macrolepis var. platylepis.
See the CNPS Inventory for information about endangerment and rarity.| 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). |
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