Common Name: POPPY FAMILY Habit: Annual to small tree; sap colorless, yellow, orange, red, or white. Leaf: basal, cauline, or both, simple and entire, toothed, or lobed, or 1--3-pinnate-dissected or compound; cauline generally alternate; stipules 0. Inflorescence: terminal, 1-flowered or cyme, raceme, or panicle; bracts generally present. Flower: bisexual, radial, bilateral, or biradial; sepals 2--3, shed after flower; petals generally 2 × sepals in number; stamens generally many; ovary 1, superior, chamber 1, style 0 or 1, stigmas or lobes 2--many, ovules few to many. Fruit: capsule, dehiscent by valves or pores, +- nut, or breaking transversely into 1-seeded, indehiscent units. Seed: fleshy appendage generally 0. Genera In Family: 25--30 genera, 200 species: northern temperate, northern tropics; some cultivated (Papaver, Eschscholzia, Hunnemannia), source of opiates. Note:Stylomecon moved to Papaver. Corydalis, Dicentra, Fumaria in Fumariaceae in FNANM, elsewhere. Glaucium flavum Crantz is a waif. According to FNANM (3:300--301), Hunnemannia fumariifolia Sweet (+- like Eschscholzia except sepals free) an occasional waif in California, but documentation evidently lacking. Fleshy appendage of seed sometimes for dispersal by ants. eFlora Treatment Author: Gary L. Hannan & Curtis Clark, except as noted Scientific Editor: Thomas J. Rosatti.
Habit: Annual, perennial herb; sap colorless or orange. Leaf: basal or basal and cauline, 1--4-ternate-dissected, segments narrow to wide. Inflorescence: cyme, 1--many-flowered. Flower: receptacle funnel-shaped, tip cupped around ovary base, outer receptacle rim occasionally spreading; sepals 2, fused, shed as unit at flower; petals generally 4 (except doubled flowers), free, obovate or wedge-shaped, generally yellow to orange (white or pink), shed after flower leaving crown-like membrane (inner receptacle rim); stamens 8--many, free; carpels 2, style 0, stigma lobes 4, spreading, linear. Fruit: oblong, dehiscent from base. Seed: many, 1--2 mm, round to ovate, net-ridged, prominent-discontinuous-ridged, or minutely pitted, tan, brown, or black. Etymology: (J.F.G. von Eschscholtz, Russian surgeon, botanist, 1793--1831) eFlora Treatment Author: Shannon M. Still, Gary Hannan & Curtis Clark
Eschscholzia caespitosa Benth.
NATIVE Habit: Annual, erect, 5--30 cm, glabrous, occasionally glaucous. Leaf: segments obtuse or acute. Inflorescence: 1--many-flowered, each pedicel subtended by a leaf. Flower: bud generally erect, glabrous, long-pointed, tip generally > 1/4 bud; receptacle obconic; petals 10--30 mm, deep yellow, bases occasionally orange-spotted. Fruit: 4--8 cm. Seed: 1.5--2.4 mm wide, elliptic to obovate, net-ridged, brown to black. Chromosomes: 2n=12. Ecology: Open chaparral or grassy slopes; Elevation: < 1800 m. Bioregional Distribution: CA-FP (exc ChI); Distribution Outside California: southwestern Oregon, northern Baja Californica. Flowering Time: Mar--Jun Jepson eFlora Author: Shannon M. Still, Gary Hannan & Curtis Clark Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Eschscholzia androuxii Next taxon: Eschscholzia californica
Botanical illustration including Eschscholzia caespitosa
Citation for this treatment: Shannon M. Still, Gary Hannan & Curtis Clark 2023, Eschscholzia caespitosa, in Jepson Flora Project (eds.) Jepson eFlora, Revision 12, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=25205, accessed on April 25, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 25, 2024.
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