Amaranthus sect. Saueranthus

Mosyakin & K. R. Robertson

Ann. Bot. Fenn. 33: 277. 1996.

Treatment appears in FNA Volume 4. Treatment on page 418.

Plants annual, glabrous, glabrescent, or pubescent. Bracts not enfolding flower, not leaflike, narrowly lanceolate to subulate-linear, margins entire, plane or indistinctly undulate at margins. Pistillate flowers: tepals (4–) 5, spatulate or obovate-elliptic, sometimes only outer tepals distinctly spatulate. Utricles dehiscence regularly circumscissile (indehiscent only in Amaranthus greggii).

Distribution

sw North America

Discussion

Species 4 (4 in the flora).

Selected References

None.

mucronulate;emarginate;obtuse;emarginate;obtuse;acute +
Sergei L. Mosyakin +  and Kenneth R. Robertson +
Mosyakin & K. R. Robertson +
rounded +  and narrowly cuneate +
Undefined subg. Acnida +
orbiculate +  and linear +
persistent +
narrowly lanceolate +  and subulate-linear +
sw North America +
peripheral +
not enfolding +
minute +  and small +
not +  and dehiscent +
terminal +  and axillary +
reduced +
undulate +, plane +  and entire +
scarious +  and membranaceous +
well-developed +
rudimentary +
Ann. Bot. Fenn. +
brown +, reddish-brown +  and black +
lenticular +  and subglobose +
well-developed +
nearly +, simple +  and branched +
prostrate +  and decumbent +
erect +  and ascending +
not fleshy +
slender +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Acanthochiton +, Acnida +, Albersia +, Amblogyna +, Euxolus +, Mengea +, Sarratia +  and Scleropus +
Amaranthus sect. Saueranthus +
Amaranthus subg. Acnida +
section +
distinct +
spatulate +  and obovate-elliptic +
subequal +
indurate +, membranaceous +, chartaceous +  and scarious +
walled +  and 3(-5)-veined +
circumscissile +
tuberculate +  and rugose +
elongate-ovoid +, ovoid +  and globose +
membranaceous +
pubescent +, glabrescent +  and glabrous +