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Ambrosia acanthicarpa . Hook
HOOKERS BUR-RAGWEED
Flatspine bur ragweed

Life   Plantae   Dicotyledoneae   Asteraceae   Ambrosia

Ambrosia acanthicarpa, seed
© Copyright Seeds USID 2015 · 1
Ambrosia acanthicarpa, seed

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Ambrosia acanthicarpa, seed
© Copyright Seeds USID 2015 · 1
Ambrosia acanthicarpa, seed

Associates · map
FamilyScientific name @ source (records)
Aphididae  Capitophorus jopepperi @ AMNH_PBI (4)
Cercopidae  Clastoptera lineatocollis @ UCR_ENT (1)
Cicadellidae  Ceratagallia ( @ UCR_ENT (86)

Cuerna occidentalis @ UCR_ENT (7)

Empoasca ( @ UCR_ENT (32)

Limotettix ( @ UCR_ENT (2)

Scaphytopius ( @ UCR_ENT (2)

Xerophloea peltata @ UCR_ENT (3)
Delphacidae  Stobaera caldwelli @ UCR_ENT (2)

Stobaera tricarinata @ UCR_ENT (1)
Eumenidae  Euodynerus annulatus @ UCRC_ENT (1)
Flatidae  Ormenis saucia @ UCR_ENT (2)
Halictidae  Lasioglossum @ UCRC_ENT (2)
Lygaeidae  Nysius raphanus @ UCR_ENT (1)
Membracidae  Micrutalis calva @ UCR_ENT (2)

Spissistilus festinus @ UCR_ENT (2)

Spissistilus occidentalis @ UCR_ENT (1)

Tortistilus albidosparsus @ UCR_ENT (1)

Tortistilus pacificus @ UCR_ENT (1)

Vanduzea triguttata @ UCR_ENT (1)
Miridae  Chlamydatus associatus @ UCR_ENT (159)

Irbisia brachycera @ UCR_ENT (2)

Lygus atriflavus @ UCR_ENT (1)

Lygus elisus @ UCR_ENT (44)

Rhinacloa forticornis @ UCR_ENT (69)

Taylorilygus apicalis @ UCR_ENT (1)
Mutillidae  Dasymutilla coccineohirta @ UCRC_ENT (1)
Nogodinidae  Neaethus uniformis @ UCR_ENT (1)
Pentatomidae  Chlorochroa ligata @ UCR_ENT (2)

Chlorochroa sayi @ UCR_ENT (38)

Thyanta accerra @ UCR_ENT (3)
Rhopalidae  Harmostes angustatus @ UCR_ENT (18)

Harmostes reflexulus @ UCR_ENT (18)

Liorhyssus hyalinus @ UCR_ENT (5)
Tingidae  Corythucha morrilli @ UCR_ENT (21)
Ulidiidae  Oedopa capito @ UCRC_ENT (1)
_  Genus A @ UCR_ENT (1)

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FNA Vol. 21 Page 11, 15 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Ambrosia

12. Ambrosia acanthicarpa Hooker, Fl. Bor.-Amer. 1: 309. 1833.

Franseria acanthicarpa (Hooker) Coville

Annuals, 10—80+ cm. Stems erect. Leaves opposite (proximal) and alternate; petioles 5—15(—25+) mm; blades ± deltate, 15—40(—85+) × 12—35(—80+) mm, 1—2-pinnately lobed, bases cuneate, ultimate margins entire or toothed, abaxial faces hispid and strigillose to sericeous, adaxial faces strigillose and gland-dotted. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0.5—2 mm; involucres shallowly cup-shaped (usually each with 1—5+ black nerves), 3—5(—7) mm diam., sparsely hirsute or glabrous; florets 6—12(—20+). Burs: bodies fusiform to obpyramidal, 3—5 mm, ± hirsutulous or glabrate, spines 8—18+, scattered, stoutly subulate (sometimes basally flattened or navicular), 2—4(—5) mm, tips straight or uncinate. 2 n = 36.

Flowering (Apr—)Jul—Nov. Canyons, sandy flats, dunes; 10—3000 m; Alta., Man., Sask.; Ariz., Calif., Colo., Idaho, Kans., Minn., Mo., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., Oreg., S.Dak., Tex., Utah, Wash., Wyo.

Updated: 2024-04-13 15:45:06 gmt
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