Flora of North America species comparison

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Eschscholzia hypecoides

Eschscholzia rhombipetala

leafy stem poppy, San Benito poppy

diamond-petal California poppy
Habit Plants annual, caulescent, erect, 5-30 cm, sparsely pubescent. Plants annual, caulescent, erect, 5-30 cm, glabrous.
Leaves

basal and cauline;

blade with ultimate lobes usually obtuse.

basal and cauline;

blade glabrous; ultimate lobes generally obtuse.
Inflorescences

cymose or 1-flowered;

buds nodding.

cymose or 1-flowered;

buds erect or nodding.
Flowers

receptacle turbinate, less than 1.5 mm broad, cup without spreading free rim;

calyx acute, pubescent;

petals yellow, sometimes with orange spot at base, 10-20 mm.

receptacle turbinate to obconic, distally translucent and somewhat swollen, more than 2 mm broad, cup without spreading free rim;

calyx acute or acuminate, glabrous, sometimes glaucous;

petals yellow, 3-15 mm.
Capsules

3-7 cm.

4-7 cm.
Seeds

brown, spheric to ellipsoid, 1-1.3 mm, reticulate.

black, spheric, 1.3-1.8 mm, reticulate.
2n

= 12.

Eschscholzia hypecoides

Eschscholzia rhombipetala
Phenology Flowering spring (Mar–May). Flowering spring (Mar–May).
Habitat Grassy areas in woodland, chaparral Fallow fields, open places
Elevation 500-1500 m (1600-4900 ft) 0-500 m (0-1600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Originally known from seven sites in California, Eschscholzia rhombipetala had not been seen since the early 1970s before it was rediscovered in 1993 on the Carrizo Plain in San Luis Obispo County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3. FNA vol. 3.
Parent taxa Papaveraceae > Eschscholzia Papaveraceae > Eschscholzia
Sibling taxa
E. caespitosa, E. californica, E. glyptosperma, E. lemmonii, E. lobbii, E. minutiflora, E. parishii, E. ramosa, E. rhombipetala
E. caespitosa, E. californica, E. glyptosperma, E. hypecoides, E. lemmonii, E. lobbii, E. minutiflora, E. parishii, E. ramosa
Synonyms E. caespitosa var. hypecoides
Name authority Bentham: Trans. Hort. Soc. London, ser. 2, 1: 408. (1835) Greene: Bull. Calif. Acad. Sci. 1: 71. (1885)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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