Tetracoccus dioicus


W. Amer. Sci. 1: 13. 1885

Common names: Parry’s tetracoccus
Treatment appears in FNA Volume 12. Treatment on page 327. Mentioned on page 326.
Please click on the illustration for a higher resolution version.


Shrubs to 2 m. Leaves subopposite, opposite, or whorled, not clustered on short shoots; blade oblong or oblanceolate to linear, 20–30 × 1–4 mm, base obtuse to cuneate, margins entire or remotely serrulate, apex obtuse to acute. Inflorescences: staminate sparingly branched racemelike thyrses, to 20 mm; pistillate flowers solitary. Pedicels: staminate present; pistillate 6–15 mm, glabrous. Staminate flowers: sepals 6–10; stamens 5–10, filaments villous basally. Pistillate flowers: sepals 7–13, in 1 series (sometimes subequal sepals alternate), red, 3–5 mm, glabrate abaxially, minutely sericeous-tomentose adaxially; pistil usually 4-carpellate, 3 mm, crisp-tomentose. Seeds (1–)2 per locule, glossy brownish red, oblong, 4–5 mm, usually with one flattened radial surface, smooth; caruncle present.

Phenology: Flowering Mar–Jun and sporadically year-round.
Habitat: Coastal chaparral and coastal scrub.
Elevation: 100–700 m.


V12 624-distribution-map.jpg

Calif., Mexico (Baja California).


Tetracoccus dioicus is found in the flora area in Orange and San Diego counties.

Selected References


Lower Taxa


Facts about "Tetracoccus dioicus"
AuthorW. John Hayden +
AuthorityParry +
Common nameParry’s tetracoccus +
DistributionCalif. + and Mexico (Baja California). +
Elevation100–700 m. +
HabitatCoastal chaparral and coastal scrub. +
IllustrationPresent +
PhenologyFlowering Mar–Jun and sporadically year-round. +
Publication titleW. Amer. Sci. +
Publication year1885 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V12/V12 624.xml +
Special statusIllustrated +
SynonymsHalliophytum +
Taxon familyPicrodendraceae +
Taxon nameTetracoccus dioicus +
Taxon parentTetracoccus +
Taxon rankspecies +
VolumeVolume 12 +