Gentianella microcalyx

(Lemmon) J. M. Gillett

Ann. Missouri Bot. Gard. 44: 246. 1957.

Common names: Eggleaf or Chihuahua gentian
Basionym: Gentiana microcalyx Lemmon Pacific Rural Press 23: 129. 1882
Treatment appears in FNA Volume 14.
Revision as of 21:41, 6 October 2024 by imported>Volume Importer
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Herbs annual, 15–60 cm. Stems decumbent to erect, branched distally, often also at or near base. Leaves: basal often withered by flowering, larger leaves ± petiolate, blades elliptic to spatulate or oblanceolate, 10–25 × 2–8 mm; cauline blades cordate-ovate to lanceolate, 5–50 × 3–30 mm. Inflorescences terminal and often axillary umbelloid cymes; pedicels 3–25 mm. Flowers (4- or)5-merous; calyx 2–3(–5) mm, lobes tri­angular to oblong or elliptic, ± unequal, 1.5–3.5 mm; corolla yellowish white to pale rose-violet or pale violet-blue, occasionally with red-violet spots distally, narrowly funnelform to nearly salverform, 6–13 mm, lobes spreading, lanceolate-ovate, (2.5–)3–6.5 mm, apex obtuse to acute (in dried specimens sometimes appearing ± acuminate through inrolling), without adaxial scales or fringes; ovary short-stipitate.


Phenology: Flowering late summer–fall.
Habitat: Moist, rocky sites in ± open pine and pine-oak woods.
Elevation: 600–2100 m.

Distribution

Ariz., Mexico (Chihuahua, Coahuila, Durango, Sonora).

Discussion

Gentianella microcalyx is primarily of Mexican dis­tribution, where its range extends to higher elevations than in the flora area, where it is known only from southern Arizona.

Selected References

None.

Lower Taxa

None.
... more about "Gentianella microcalyx"
James S. Pringle +
(Lemmon) J. M. Gillett +
Gentiana microcalyx +
Eggleaf or Chihuahua gentian +
Ariz. +, Mexico (Chihuahua +, Coahuila +, Durango +  and Sonora). +
600–2100 m. +
Moist, rocky sites in ± open pine and pine-oak woods. +
Flowering late summer–fall. +
Ann. Missouri Bot. Gard. +
Aloitis +, Amarella +  and Arctogentia +
Gentianella microcalyx +
Gentianella +
species +