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Vascular Plants of California
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Senegalia greggii
CATCLAW, DEVIL'S CLAW


Higher Taxonomy
Family: Fabaceae (Leguminosae)View DescriptionDichotomous Key
Common Name: LEGUME FAMILY
Habit: Annual to tree. Leaf: generally alternate, generally compound, generally stipuled, generally entire, pinnately veined Inflorescence: generally raceme, spike, umbel or head; or flowers 1--few in axils. Flower: generally bisexual, generally bilateral; hypanthium 0 or flat to tubular; sepals generally 5, generally fused; petals generally 5, free, fused, or lower 2 +- united into keel (see 3, Key to Groups, for banner, wings); stamens 10 or many (or [1], 5, 6, 7, 9), free or fused or 10 with 9 filaments at least partly fused, 1 (uppermost) free; pistil 1, ovary superior, generally 1-chambered, ovules 1--many, style, stigma 1. Fruit: legume, including a stalk-like base (above receptacle) or not. Seed: 1--many, often +- reniform, generally hard, smooth.
Genera In Family: +- 730 genera, 19400 species: worldwide; with grasses, requisite in agriculture, most natural ecosystems. Many cultivated, most importantly Arachis, peanut; Glycine, soybean; Phaseolus, beans; Medicago, alfalfa; Trifolium, clovers; many orns. Note: Unless stated otherwise, fruit length including stalk-like base, number of 2° leaflets is per 1° leaflet. Upper suture of fruit adaxial, lower abaxial. Anthyllis vulneraria L. evidently a waif, a contaminant of legume seed from Europe. Laburnum anagyroides Medik., collected on Mount St. Helena in 1987, may be naturalized. Ceratonia siliqua L., carob tree (Group 2), differs from Gleditsia triacanthos L. in having evergreen (vs deciduous) leaves that are 1-pinnate (vs 1-pinnate on spurs on old stems, 2-pinnate on new stems) with 2--5(8) (vs 7--17) 1° leaflets, commonly cultivated, now naturalized in southern California. Aeschynomene rudis Benth. , Halimodendron halodendron (Pall.) Voss (possibly extirpated), Lens culinaris Medik. are agricultural weeds. Caragana arborescens Lam. only cult. Ononis alopecuroides L. , Sphaerophysa salsula (Pall.) DC. all evidently extirpated. Cercidium moved to Parkinsonia; Chamaecytisus to Cytisus; Psoralidium lanceolatum to Ladeania.
eFlora Treatment Author: Martin F. Wojciechowski, except as noted
Scientific Editor: Martin F. Wojciechowski, Thomas J. Rosatti.
Genus: SenegaliaView Description 


Habit: Shrub, tree, armed with prickles, stipular spines 0. Leaf: even-2-pinnate, generally alternate, generally deciduous; petiole, main axis generally with raised glands. Inflorescence: [head] spike, generally 1 (rarely in raceme, panicle). Flower: radial; sepals, petals 4--5, inconspicuous; stamens many, conspicuous, exserted, free; ovary simple. Fruit: generally dehiscent, generally flat. Seed: aril generally 0.
Species In Genus: +- 200 species: tropics, subtropical America, Africa, Asia, Australia.
eFlora Treatment Author: David Seigler & John E. Ebinger
Reference: Seigler et al. 2006 Phytologia 88:38--93
Unabridged Reference: Isely 1998 Native and Naturalized Leguminosae (Fabaceae) of the US
Senegalia greggii (A. Gray) Britton & Rose
NATIVE
Habit: Shrub, < 7 m, +- hairy. Stem: twigs +- ridged; prickles recurved. Leaf: clustered on short-shoots or not, < 2.5 cm; petiole 2--10 mm, +- hairy; 1° leaflets 1--3 pairs, 7--16 mm; 2° leaflets 3--6 pairs, 2.8--6.3 mm, 0.6--2.5 mm wide, oblong to obovate, +- hairy. Inflorescence: >= 1 clustered with leaves on short-shoots, stalked, 1--4 cm, generally > leaf. Flower: light yellow to cream. Fruit: 5--15 cm, 10--25 mm wide, curved or twisted, papery, light brown, glabrous.
Ecology: Uncommon; dry slopes in chaparral, flats, washes, disturbed areas; Elevation: 100--1400 m. Bioregional Distribution: e PR, D; Distribution Outside California: to Texas, northern Mexico including Baja California. Flowering Time: Apr--Jun
Synonyms: Acacia greggii A. Gray; Acacia greggii var. greggii
Jepson eFlora Author: David Seigler & John E. Ebinger
Reference: Seigler et al. 2006 Phytologia 88:38--93
Unabridged Reference: Isely 1998 Native and Naturalized Leguminosae (Fabaceae) of the US
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Botanical illustration including Senegalia greggii

botanical illustration including Senegalia greggii

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Citation for this treatment: David Seigler & John E. Ebinger 2012, Senegalia greggii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=89126, accessed on November 14, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on November 14, 2019.

Senegalia greggii
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© 2009 Neal Kramer
Senegalia greggii
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© 2009 Neal Kramer
Senegalia greggii
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© 2009 Gary A. Monroe
Senegalia greggii
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© 2014 Keir Morse
Senegalia greggii
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© 2014 Keir Morse
Senegalia greggii
click for enlargement
© 2009 Neal Kramer

More photos of Senegalia greggii in CalPhotos



Geographic subdivisions for Senegalia greggii:
e PR, D
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map of distribution 1
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Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.