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.
Etymology: (Greek: hesper: evening or west; mecon: poppy) eFlora Treatment Author: Gary L. Hannan
Hesperomecon linearis (Benth.) Greene
NATIVE Habit: Annual, 3--40 cm, spreading-hairy. Leaf: basal or +- so, 5--85 mm, linear. Inflorescence: terminal, 1-flowered; peduncle 2.5--38 cm, > leaves, spreading-hairy. Flower: buds nodding; petals 3--20 mm, 2--10 mm wide, ovate to obovate, cream, base yellow or not, or outer 3 yellow, inner 3 cream; stamens many. Fruit: 10--15 mm, ovate. Seed: 0.4 mm, reniform-obovate. Ecology: Grassy areas, washes; Elevation: < 1000 m. Bioregional Distribution: c&s SNF, Teh, SnJV, CW; Distribution Outside California: southern Oregon. Flowering Time: Mar--Jun Synonyms: Meconella linearis (Benth.) A. Nelson & J.F. Macbr.; Hesperomecon filiformis Fedde; Platystigma linearis Benth. Jepson eFlora Author: Gary L. Hannan Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Hesperomecon Next taxon: Meconella
Botanical illustration including Hesperomecon linearis
Citation for this treatment: Gary L. Hannan 2012, Hesperomecon linearis, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28048, accessed on April 19, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.
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