Difference between revisions of "Chenopodium polyspermum"
Sp. Pl. 1: 220. 1753.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 56: | Line 56: | ||
|publication year=1753 | |publication year=1753 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_531.xml |
|genus=Chenopodium | |genus=Chenopodium | ||
|subgenus=Chenopodium subg. Chenopodium | |subgenus=Chenopodium subg. Chenopodium | ||
Revision as of 20:01, 24 September 2019
Stems erect or decumbent, branched, 1.5–5(–10) dm, glabrous. Leaves nonaromatic; petiole to 1.7 cm; blade ovate to elliptic or oblong, 1.5–4(–8) × 0.4–2.5 cm, base rounded to cuneate, apex obtuse to rounded or acute, glabrous. Inflorescences lateral cymes, sometimes terminal and axillary spikelike panicles; bracts absent or leaflike and gradually reduced in size distally. Flowers: perianth segments 5, distinct nearly to base, lobes elliptic to oblong, 0.7–1 × 0.5–0.8 mm, apex obtuse or rounded, not keeled, glabrous, not covering fruit at maturity; stamen 1; stigmas 2, 0.1 mm. Utricles depressed-ovoid; pericarp nonadherent, smooth. Seeds 0.8–1.3 mm diam.; seed coat brown-black, dull. 2n = 18.
Distribution
Europe, n Asia.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Plants spreading to suberect; inflorescences lax, cymose, axillary; leaf blade apices usually obtuse, green or yellowish green. | Chenopodium polyspermum var. polyspermum |
| 1 | Plants upright; inflorescences condensed, spiciform, terminal and axillary; leaf blade apices usually acute, becoming red at maturity | Chenopodium polyspermum var. acutifolium |