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Vascular Plants of California
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Hoffmannseggia glauca
PIG-NUT, HOG POTATO


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: HoffmannseggiaView DescriptionDichotomous Key


Habit: Perennial herb, [subshrub], shrub. Leaf: 2-pinnate, leaf odd-pinnate, 1° leaflets even-pinnate. Inflorescence: lateral or terminal. Flower: +- bilateral; sepals +- free, equal; petals +- equal, yellow to orange-red; stamens 10, exserted, free, filaments often glandular. Fruit: dehiscent or not. Seed: several.
Etymology: (J. Centurius, Count of Hoffmannsegg, Germany, 1766--1849)
eFlora Treatment Author: Beryl B. Simpson
Reference: Simpson 1999 Lundellia 2:14--54
Unabridged Reference: Isely 1975 Mem New York Bot Gard 25:162--168
Hoffmannseggia glauca (Ortega) Eifert
NATIVE
Habit: Plant erect, < 30 cm; roots deep, tuberous. Leaf: 5--12 cm; 2° leaflets 4--13, 2--6 mm. Inflorescence: 5--23 cm, often glandular. Flower: petals spreading, 10--18 mm wide, generally yellow, with some orange-red. Fruit: 1.5--4 cm, +- curved.
Ecology: Uncommon. Dry, alkaline flats in deserts, disturbed areas; Elevation: < 900 m. Bioregional Distribution: SnJV, SCoRO, SCo, WTR, D; Distribution Outside California: to Texas, Mexico, South America. Flowering Time: Apr--Jun
Synonyms: Hoffmannseggia densiflora Benth.
Jepson eFlora Author: Beryl B. Simpson
Reference: Simpson 1999 Lundellia 2:14--54
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Hoffmannseggia glauca

botanical illustration including Hoffmannseggia glauca

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Citation for this treatment: Beryl B. Simpson 2012, Hoffmannseggia glauca, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28314, accessed on April 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.

Hoffmannseggia glauca
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©2015 Keir Morse
Hoffmannseggia glauca
click for enlargement
©2015 Keir Morse
Hoffmannseggia glauca
click for enlargement
©2015 Keir Morse
Hoffmannseggia glauca
click for enlargement
©2015 Keir Morse
Hoffmannseggia glauca
click for enlargement
©2004 James M. Andre

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Geographic subdivisions for Hoffmannseggia glauca:
SnJV, SCoRO, SCo, WTR, D
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

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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 (fruiting time in some monocot genera).