Flora of North America species comparison

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Nitrophila

niterwort
Habit Herbs, perennial, suffrutescent, glabrous.
Stems

numerous from base, erect or prostrate, branched, ribbed, not jointed, not armed, not fleshy.
Leaves

opposite (rarely alternate), connate, clasping at base, sessile, succulent;

blade linear or broadly ovate, margins entire, apex acute or apiculate.
Inflorescences

axillary, flowers solitary or in 2–3-flowered clusters, bibracteate.
Flowers

bisexual, with 1 or 2 bractlets ± equaling perianth length;

perianth deeply 5[–7]-parted, segments strongly imbricate, chartaceous;

stamens 5;

stigmas 2.
Seeds

vertical, lenticular;

seed coat black, shiny;

embryo annular, perisperm copious.
Fruiting

structures: fruit a utricle;

pericarp free from seed, membranous, indehiscent.
x

= 9.

Nitrophila
Distribution
from USDA
w United States; Central America; South America
[BONAP county map]
Discussion

Species ca. 5 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Leaves not densely crowded, blade linear, terete or subterete, at least in distal 1/2, 5-30 × 0.7-1.5 mm; stems 7-30 cm
N. occidentalis
1. Leaves densely crowded, blade broadly ovate, flat, 2.3-4(-4.7) × 2.5-3.5 mm; stems 3-10 cm
N. mohavensis
Source FNA vol. 4, p. 263. Author: Noel H. Holmgren.
Parent taxa Chenopodiaceae
Subordinate taxa
N. mohavensis, N. occidentalis
Name authority S. Watson: Botany (Fortieth Parallel), 297. (1871)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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