Flora of North America species comparison

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Halimolobos diffusa

spreading fissurewort, spreading halimolobos
Habit Perennials.
Stems

erect to ascending, often paniculately branched distally, (1.2–)3–7.5(–12) dm, trichomes sessile or subsessile.
Basal leaves

absent on older plants.
Cauline leaves

petiolate or (distal) sessile;

petiole 0.5–1 cm;

blade oblanceolate, lanceolate to oblong, or elliptic, (1–)2–5.5(–7) cm × (4–)7–20(–30) mm (smaller distally), base cuneate, margins sinuately lobed or dentate, surfaces with minutely stalked to subsessile trichomes.
Racemes

slightly to considerably elongated in fruit.
Flowers

sepals slightly spreading, 1.2–2 × 0.4–0.7 mm;

petals (slightly spreading), spatulate, (slender), 1.8–2.5 × 0.7–1 mm, claw distinctly differentiated from blade, 0.5–1 mm;

filaments spreading, 2.2–3 mm, longer than petals;

anthers 0.3–0.5 mm.
Fruiting pedicels

usually divaricate, rarely slightly descending, (2–)3–6(–9) mm.
Fruits

divaricate or slightly descending, straight, subtorulose, linear, terete, 0.6–1.4(–1.7) cm × 0.5–0.8 mm;

ovules 16–24 per ovary;

style 0.7–1(–1.5) mm.
Seeds

uniseriate, 0.8–1 × 0.4–0.6 mm.

Halimolobos diffusa
Phenology Flowering mid Jul-mid Nov.
Habitat Shaded talus, ravines, granite outcrops, rock crevices, bluffs, steep canyons, limestone slopes, oak-juniper communities, igneous slopes
Elevation 1100-2300 m (3600-7500 ft)
Distribution
from FNA
AZ; NM; TX; Mexico (Chihuahua, Coahuila)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 7, p. 558.
Parent taxa Brassicaceae > tribe Halimolobeae > Halimolobos
Sibling taxa
H. jaegeri, H. pubens
Synonyms Sisymbrium diffusum, Hesperis diffusa, Sophia diffusa
Name authority (A. Gray) O. E. Schulz: in H. G. A. Engler, Pflanzenr. 86[IV,105]: 228. (1924)
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 Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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