Plants 12–25 cm (with multicipital crowns, not cespitose; taproots thick, woody). Stems strongly woody proximally, glandular. Leaves: proximal and mid separated by evident internodes; blades oblong-ovate, 4–6 mm, distal much reduced, margins green, faces hispidulous, sessile- to stipitate-glandular. Heads borne singly or in loose, corymbiform arrays. Involucres 6.5–7 mm. Disc florets functionally staminate (with sterile ovaries); corollas 4–4.5 mm. Cypselae 2.5–2.8 mm, faces eglandular. 2n = 18.

Phenology: Flowering Jun–Aug.
Habitat: Crevices of sparsely vegetated sandstone, areas of Pinus monophylla, Pinus ponderosa and Arctostaphylos pungens
Elevation: 2000–2100 m

Distribution

• Generated Map
• Legacy Map

Nev.

Discussion

Of conservation concern.

Ionactis caelestis is known from a single population in the Red Rock Canyon National Conservation Area of the Spring Mountains, Clark County.

Selected References

None.

Lower Taxa

None.