Paxistima myrsinites

(Pursh) Rafinesque
Sylva Tellur., 42. 1838.
Common names: Myrtle box-leaf Oregon boxwood mountain-lover
Basionym: Ilex myrsinites Pursh Fl. Amer. Sept. 1: 119. 1813
Synonyms: Paxistima myrsinites subsp. mexicana Navaro & W. H. Blackwell
Treatment appears in FNA Volume 12. Treatment on page 130.

Shrubs 5–10 dm. Stems prostrate to spreading. Leaves: petiole 1 mm; blade ovate, elliptic, or oblanceolate, 8–34 × 3–12 mm, base cuneate, margins serrate, apex rounded to acute. Inflorescences 1–3-flowered. Flowers: sepals obtuse-deltate, 0.8–1 mm; petals ovate, 1–1.2 mm; filaments 2 times longer than anthers. Capsules obovoid, 4–7 × 2–4 mm. Seeds dark brown to black, obovoid; aril white.


Phenology: Flowering spring–summer; fruiting summer.
Habitat: Shaded forests in mountains.
Elevation: 600–3400 m.

Distribution

V12 641-distribution-map.jpg

Alta., B.C., Ariz., Calif., Colo., Idaho, Mont., N.Mex., Oreg., Utah, Wash., Wyo., Mexico (Coahuila, Nuevo León, Tamaulipas).

Discussion

The leaves of Paxistima myrsinites vary in size and shape with elevation and latitude, but the variation is continuous and no differences to separate infraspecific taxa have been found.

Paxistima myrsinites was reported from Bexar County, Texas, based on a specimen collected by E. H. Wilkinson in 1900 (C. L. Lundell 1942–1969, vol. 2; D. S. Correll and M. C. Johnston 1970). However, it was not reported from Texas by B. L. Turner et al. (2003) and no appropriate habitat occurs in that county.

Selected References

None.

Lower Taxa

None.

... more about "Paxistima myrsinites"
Jinshuang Ma +
(Pursh) Rafinesque +
Ilex myrsinites +
Myrtle box-leaf +, Oregon boxwood +  and mountain-lover +
Alta. +, B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, N.Mex. +, Oreg. +, Utah +, Wash. +, Wyo. +, Mexico (Coahuila +, Nuevo León +  and Tamaulipas). +
600–3400 m. +
Shaded forests in mountains. +
Flowering spring–summer +  and fruiting summer. +
Sylva Tellur., +
Paxistima myrsinites subsp. mexicana +
Paxistima myrsinites +
Paxistima +
species +