Jepson eFlora: Taxon page
Vascular Plants of California
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon

Agave shawii var. shawii

Higher Taxonomy
Family: AgavaceaeView DescriptionDichotomous Key
Habit: Perennial herb, shrub, tree, fibrous succulent or not, from bulbs or rhizomes. Stem: above ground or not, branched or not. Leaf: simple, deciduous or not, basal or in terminal rosettes, generally sessile, linear, lanceolate, oblanceolate or ovate, fibrous or not, thin and flexible or thick and rigid or succulent; margin entire, fine-serrate, dentate, or with filaments, tips rigid or flexible, with a spine or not. Flower: bisexual; perianth parts 6, in 2 petal-like whorls, free or +- fused; stamens 6, +- fused to perianth, filaments often wide, succulent; ovary superior or inferior, chambers 3, style 1 (thick, poorly defined), stigma head-like or 3-lobed. Fruit: capsule, indehiscent, loculicidal, or septicidal. Seed: few to many, +- flat or ovoid, generally black.
Genera In Family: 24 genera, 637 species: worldwide.
eFlora Treatment Author: Dale W. McNeal, except as noted
Scientific Editor: Dale W. McNeal, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: AgaveView DescriptionDichotomous Key

Habit: Shrub-like, stem often short, forming basal rosettes, scapose, often rhizomed, generally dying after flowering. Leaf: long-lived, sessile, lance-linear to ovate, thick, generally rigid, often fleshy, glabrous, armed with marginal teeth, spine at tip. Inflorescence: panicle-, raceme-, or spike-like, bracted, often with bulblets. Flower: [1] paired, or in clusters of 3--40; perianth generally funnel- or bell-shaped, yellow to green-yellow, parts petal-like, 6 in 2 whorls, fused basally, lobes erect to ascending or +- spreading distally; stamens 6; ovary inferior, 3-chambered. Fruit: oblong to ovoid, often beaked, loculicidal. Seed: many, +- flat, black.
Etymology: (Greek: noble, for imposing stature)
Unabridged Note: Cultivated material may be identified using Gentry 1982 Agaves of Continental N. America. Univ. Arizona Press.
eFlora Treatment Author: James L. Reveal
Reference: Reveal & Hodgson 2002 FNANM 26:442--461
Agave shawii Engelm. var. shawii
Habit: Stem 0.5--2 m; rosette 1, 0.8--20 dm. Leaf: 20--50 cm, narrow-ovate, marginal teeth 5--6 mm, 1--2(5) cm apart, tip-spine 2--4 cm. Inflorescence: panicle-like, 2--4 m including peduncle; bracts 10--25 cm, lanceolate to triangular, persistent; branches generally 8--14, generally 10--20 cm; flowers 35--75[100] per cluster. Flower: yellow to +- red; perianth 6--10 cm, tube 12--19 mm, wide-funnel-shaped, lobes 17--40 mm, unequal; stamens long-exserted, filaments 4.3--7 cm, from middle of tube, yellow, anthers 20--35 mm; ovary 3--5 cm. Fruit: 5.5--7 cm. Seed: 4--7 mm.
Ecology: Coastal bluffs, historically nearby mesas, foothills; Elevation: < 100[< 300] m. Bioregional Distribution: s SCo (sw San Diego Co.); Distribution Outside California: Baja California. Flowering Time: Sep--May
Synonyms: Agave orcuttiana Trelease; Agave pachyacantha Trelease
Jepson eFlora Author: James L. Reveal
Reference: Reveal & Hodgson 2002 FNANM 26:442--461
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

Previous taxon: Agave deserti var. simplex
Next taxon: Agave utahensis

Name Search

Botanical illustration including Agave shawii var. shawii

botanical illustration including Agave shawii var. shawii

Please use this Google Form for Contact/Feedback

Citation for this treatment: James L. Reveal 2012, Agave shawii var. shawii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on April 18, 2024.

Agave shawii  
var. shawii
click for enlargement
©2013 Keir Morse
Agave shawii  
var. shawii
click for enlargement
©2013 Keir Morse
Agave shawii  
var. shawii
click for enlargement
©2017 Keir Morse
Agave shawii  
var. shawii
click for enlargement
©2017 Keir Morse
Agave shawii  
var. shawii
click for enlargement
©2013 Keir Morse

More photos of Agave shawii var. shawii
in CalPhotos

Geographic subdivisions for Agave shawii var. shawii:
s SCo (sw San Diego Co.)
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
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.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

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).