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

Tetracoccus hallii

Higher Taxonomy
Family: PicrodendraceaeView Description 

Habit: Shrub [tree]; dioecious [monoecious]. Stem: generally branched. Leaf: simple [palmate-compound], alternate, opposite, or whorled in 3s; entire or toothed; stipules 0 [present]. Inflorescence: generally axillary [subterminal, terminal]. Staminate Flower: +- radial; sepals [3]4--10[12], free [fused], overlapped; petals 0; nectary disk present [0]; stamens [2]5--10[55], filaments free [fused]. Pistillate Flower: +- radial; sepals [3]4--13, free; petals 0; nectary disk present [0]; ovary superior, compound, placentas axile, ovules generally 2 per chamber, styles free [fused]. Fruit: capsule. Seed: 1--2 per chamber, scar generally appendaged [not].
Genera In Family: 24 genera, 80 species: tropics, especially southern hemisphere. Note: Incl in (non-monophyletic) Euphorbiaceae in TJM (1993).
eFlora Treatment Author: Bruce G. Baldwin, family description
Scientific Editor: Thomas J. Rosatti.
Tetracoccus hallii Brandegee
Stem: twigs sparsely short-strigose, glabrous in age. Leaf: generally alternate, generally clustered on short, lateral twigs; blade 2--12 mm, oblanceolate to obovate, entire, tip obtuse to rounded. Staminate Inflorescence: cyme; flowers generally 1--5, generally clustered on short, lateral twigs; pedicel 3--5.5 mm. Staminate Flower: sepals 4--6, +- round; stamens 4--8, filaments 1.5--2.5 mm, glabrous. Pistillate Flower: pedicel 0.5--1(3) mm; sepals generally 5, 2--5 mm, ovate to deltate; ovary generally 3-lobed, dense-, fine-gray-tomentose, chambers (2)3(4), styles 1.5--2 mm. Fruit: 8--12 mm, 6--10 mm wide, fine-tomentose.
Ecology: Rocky slopes, washes; Elevation: < 1200 m. Bioregional Distribution: se DMoj, DSon; Distribution Outside California: western Arizona. Flowering Time: Mar--May
Jepson eFlora Author: Grady L. Webster
Reference: Dressler 1954 Rhodora 56:45--61
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

Previous taxon: Tetracoccus dioicus
Next taxon: Tetracoccus ilicifolius

Name Search

Botanical illustration including Tetracoccus hallii

botanical illustration including Tetracoccus hallii

Please use this Google Form for Contact/Feedback

Citation for this treatment: Grady L. Webster 2012, Tetracoccus hallii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 03, 2023.

Citation for the whole project: Jepson Flora Project (eds.) 2023, Jepson eFlora,, accessed on October 03, 2023.

Tetracoccus hallii
click for enlargement
© 2012 Neal Kramer
Tetracoccus hallii
click for enlargement
© 2012 Neal Kramer
Tetracoccus hallii
click for enlargement
© 2010 Steve Matson
Tetracoccus hallii
click for enlargement
© 2010 James M. Andre
Tetracoccus hallii
click for enlargement
© 2012 Neal Kramer
Tetracoccus hallii
click for enlargement
© 2010 Steve Matson

More photos of Tetracoccus hallii in CalPhotos

Geographic subdivisions for Tetracoccus hallii:
se DMoj, DSon
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).