Tetragonia tetragonioides

(Pallas) Kuntze

Revis. Gen. Pl. 1: 264. 1891.

Basionym: Demidovia tetragonioides Pallas Enum. Hort. Demidof, 150, plate 1. 1781
Synonyms: Tetragonia expansa Murray
Treatment appears in FNA Volume 4. Treatment on page 78.

Stems mat-forming, 3–14 dm. Leaves 1–10 × 5–5 cm; petiole 1–3 cm, winged; blade pale green abaxially, dark green adaxially, midvein and lateral-veins raised abaxially, ovate-rhombic to triangular, base truncate, papillate with larger papillae abaxially. Inflorescences: peduncle to 2 mm. Flowers sometimes unisexual; calyx lobes spreading, yellow, ovate to half orbiculate, 2 mm; stamens clustered or scattered. Fruits turbinate, 8–12 mm; horns 4–6. Seeds smooth. 2n = 32.


Phenology: Flowering spring–fall.
Habitat: Sand dunes, bluffs, margins of coastal wetlands, disturbed areas
Elevation: 0-500 m

Distribution

V4 159-distribution-map.gif

Introduced; Calif., Conn., Fla., Mass., N.C., Oreg., Pa., W.Va., Wis., Mexico, South America, e Asia, Pacific Islands (New Zealand), Australia

Discussion

Tetragonia tetragonioides is cultivated as a vegetable.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Tetragonia tetragonioides"
Nancy J. Vivrette +
(Pallas) Kuntze +
papillate +
Demidovia tetragonioides +
dark green +  and pale green +
scale-like +, triquetrous +, terete +  and flat +
appendaged +, hooded +  and petaloid +
orbiculate +  and ovate +
2 cm20 mm <br />0.02 m <br /> (?) +
horned +, angled +  and campanulate +
Calif. +, Conn. +, Fla. +, Mass. +, N.C. +, Oreg. +, Pa. +, W.Va. +, Wis. +, Mexico +, South America +, e Asia +, Pacific Islands (New Zealand) +  and Australia +
0-500 m +
5 cm50 mm <br />0.05 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
inconspicuous +
campanulate +  and tubular +
indehiscent +
turbinate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Sand dunes, bluffs, margins of coastal wetlands, disturbed areas +
peduncled +  and sessile +
ovate-rhombic;triangular +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
5 cm50 mm <br />0.05 m <br /> (5 cm50 mm <br />0.05 m <br />) +
entire;slightly sinuate or shallowly lobed +
ovate-rhombic;triangular +
[1-]3-10-loculed +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
connate +  and distinct +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering spring–fall. +
3-10-carpellate +
Revis. Gen. Pl. +
light-brown +
papillose +
reniform +
scattered +  and clustered +
connate +  and distinct +
perigynous +
mat-forming +
underground +
semiwoody +
adnate +  and free +
connate +  and distinct +
Tetragonia expansa +
Tetragonia tetragonioides +
Tetragonia +
species +
perennial +  and annual +
pilose +  and glabrous +