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Arctomecon californica Torr. & Frém.
Golden bearclaw poppy

Life   Plantae   Dicotyledoneae   Papaveraceae   Arctomecon

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  • Missouri Botanical Garden

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  • Flora of North America

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena balsamorhizae @ BBSL (2)

Andrena quadrilimbata @ BBSL (2); BBSL__LMNRA (1)

Andrena rubrotincta @ BBSL (1)

Macrotera mortuaria @ BBSL (2)

Megandrena enceliae @ BBSL (11)

Perdita exclamans @ BBSL (1)

Perdita heterothecae @ BBSL (6)

Perdita meconis @ BBSL (44); BBSL__LMNRA (2)

Perdita mohavensis @ BBSL__LMNRA (3)

Perdita nigridia @ BBSL (1)

Perdita triangulifera @ BBSL (1)
Apidae  Anthophorula deserticola @ BBSL (10)

Apis mellifera @ BBSL (22); BBSL__LMNRA (1)

Centris cockerelli @ BBSL (1)

Diadasia diminuta @ BBSL (1)

Diadasia rinconis @ BBSL (1)

Diadasia vallicola @ BBSL (1)

Eucera albescens @ BBSL (1)

Eucera quadricincta @ BBSL (5)

Habropoda pallida @ BBSL (1)
Colletidae  Colletes louisae @ BBSL (1)

Hylaeus coquilletti @ BBSL (6)
Halictidae  Lasioglossum hyalinum @ BBSL (24)

Lasioglossum microlepoides @ BBSL (18)

Lasioglossum sisymbrii @ BBSL (49); BBSL__LMNRA (2)
Megachilidae  Ashmeadiella bigeloviae @ BBSL (1)

Ashmeadiella rubrella @ BBSL (1)

Megachile fucata @ BBSL (5)

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FNA | Family List | FNA Vol. 3 | Papaveraceae | Arctomecon

3. Arctomecon californica Torrey & Frémont in J. C. Frémont, Rep. Exped. Rocky Mts. 312. 1845.

Golden bearclaw-poppy

Plants subscapose, to 6 dm. Leaves 3-20 cm; blade shallowly to deeply 3-7-lobed distally, 5 cm wide distally, copiously long-pilose, sometimes also minutely hirsute. Inflorescences 3-20-flowered, branching, glabrous throughout or long-pilose proximally; buds glabrous. Flowers: sepals glabrous; petals caducous, 6, deep yellow, 2.5-4 cm; filaments not dilated distally; style absent. Capsules persistent, obconic, 1-2.5 cm, dehiscing not more than 1/4 length. 2 n = 24.

Flowering mid spring; fruiting early summer. Barren shales that are heavily gypsiferous or otherwise chemically unusual (borate-bearing, lithium-bearing), creosote bush zone; of conservation concern; 500-1000 m; Ariz., Nev., Utah.

Arctomecon californica is found in mostly small populations ranging from the vicinity of Las Vegas, Nevada, eastward to extreme northwestern Arizona near Lake Mead. It is known otherwise only from a single collection in Washington County, Utah.

Updated: 2024-05-25 23:16:12 gmt
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