Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Curtis Clark

Annual to small tree; sap often colored, often milky
Leaves basal, cauline, or both, generally toothed, lobed, or dissected; cauline generally alternate; stipules 0
Inflorescence: cyme, raceme, or panicle (terminal), or flower solitary
Flower bisexual, generally radial; sepals 2–4, sometimes shed ± at flower; petals generally 4 or 6 (or more), sometimes in 2 unlike pairs; stamens 4–many; ovary generally 1, superior, chamber generally 1, stigma lobes 0–many, ovules 1–many
Fruit: generally capsule, dehiscent by valves or pores, generally septicidal
Genera in family: 40 genera, 400 sp.: n temp, n tropical, s Africa; some cultivated (Papaver, Dicentra, Eschscholzia ). Petal length includes any spur or pouch. Hunnemannia fumariifolia Sweet (Eschscholzia-like garden per with free sepals) an uncommon waif in CA. Corydalis, Dicentra, Fumaria formerly treated in Fumariaceae.



Shrub to small tree, evergreen; sap colorless
Leaves entire or minutely toothed
Inflorescence: flowers solitary, terminal
Flower: receptacle funnel-shaped around ovary base; sepals 2, shed at flower; petals 4, free, obovate or wedge-shaped, yellow, satiny, shed after pollination; stamens many, free; placentas 2, style 0, stigma lobes 2, flat
Fruit cylindric, dehiscent from base
Seeds many, 2–3 mm, obovate, smooth, brown or black with pale outgrowth near stalk
Species in genus: 2 species: CA, Baja CA
Etymology: (Greek: tree poppy)


D. rigida Benth.


Shrub 1–3 m
Leaf 2.5–10 cm, 7–25 mm wide (3–8 X longer than wide), tip acute, margin minutely toothed
Flower: petals 2–3 cm
Fruit 5–10 cm
Seed 2–2.5 mm
Ecology: Dry slopes, washes, especially recent burns
Elevation: < 1800 m.
Bioregional distribution: s Northwestern California, Cascade Range Foothills, Sierra Nevada Foothills, Central Western California, Southwestern California
Distribution outside California: n Baja California
Horticultural information: SUN, DRN, DRY: 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24; CVS.

Information on Seed Size was contributed by Sean Watts (17 Jan 2004):
SEED 20 - 25 mm, should be 2 - 2.5mm (Generic description is 2 - 3mm)

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bioregional map for DENDROMECON%20rigida being generated

Retrieve Jepson Interchange Index to Plant Names entry for Dendromecon rigida
Retrieve dichotomous key for Dendromecon
Retrieve multiple-entry key (MEKA) for Dendromecon
Overlay Consortium of California Herbaria specimen data by county on this map
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