Rock Garden Plants
Pleiacanthus  spinosus (Nutt.) Rydb.  trib. Cichorieae 
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FamilyASTERACEAE
Genus species var.Pleiacanthus  spinosus (Nutt.) Rydb.  trib. Cichorieae
SynonymsLygodesmia spinosa Nutt. (basionym)
 Stephanomeria spinosa (Nutt.) Tomb
Territory Northwestern U.S.A.Southwestern U.S.A.ArizonaCaliforniaIdahoMontanaNevadaOregonUtah
dry, rocky slopes
Altitude1500-2900m
Description stem ramose, rigid, tipped with spine, lower stem leaves sessile, linear, entire, the upper scaly, capitula solitary, pedunculate, involucre uniseriate
Size10-50cm
Colorrose, bluish purple
Bloomsummer
Ca
Typesubshrub
Cultivationsunny, dry, rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationseed in spring, barely covered, germ. 1 month, 10-16°C
cuttings in late summer
BibliographyFlora of North America www.eFloras.org
Compositae Checklist compositae.landcareresearch.co.nz
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý