Echinocereus yavapaiensis M.A. BAKER
Baker, M. A..- Pl. Syst. Evol. 258: 63 – 83 (2006)

Holotypus
USA, Arizona, Yavapai County, Battle Flat Quadrangle, Muldoon Gulch, 7 km NNE of Crown King, 5. April 2000, MAB & DL 13723 [ASU 238488, Barcode 8818471]

Synonyme
Keine

Etymologie
Echinocereus = Igelsäulenkaktus
yavapaiensis = benannt nach Herkunft im Yavapai County

Originaltext der Erstbeschreibung (Auszug)
Stems generally uniformly cespitose, to 48 cm long, mostly less than 30 cm; thick, averaging nearly 7 cm in diameter, number of ribs 10–14, mostly 12; distance between adjacent areoles on the same rib mostly less than 10 mm; number of radial spines ca. 9, ca. 2 cm long; number of central spines 1–3 (4), to 6 cm long, mostly less than 3 cm, thin, ca. 0.55 mm dia.; flowers dimorphic with a single form per plant; pollen-fertile flowers averaging 54 mm long and 38 mm wide, length from base of pericarpel to upper areole 42 mm, style averaging 33 mm long, stamens averaging 30 mm long; pollen-sterile flowers smaller, averaging 49 mm in length and 33 mm wide, length from base of pericarpel to upper areole 38 mm, style averaging 20 mm long, stamens averaging 30 mm long. In both flower types, the average axial length of pith below the ovary 15 mm and average ovary length 9 mm. Plants with pollen-fertile flowers not producing fruits. Distribution. Yavapai County, Arizona; area of Yarnell eastward to near Black Canyon City and northward to Mingus Mountain. All verified populations occur between 1035 and 1860 m and are allopatric with those of E. coccineus. Habitat. Typically associated with boulders, cliffs, bedrock outcroppings or rocky soils of granite, granitic schist, basalt, quartz, or welded volcanic tuff. Generally occurring on south to southwest-facing hillsides, less frequent on north to east-facing hillsides and on hilltops. Desert scrub or transition scrub.

Morphologische Merkmale (eigene Untersuchungen)
Die sehr detailierte Erstbeschreibungen wurde durch eigenen Untersuchungen bestätigt.

Standort
USA, Arizona, Yavapai County in 1400 bis 1500 m Höhe zwischen Granitfelsen. pH Wert: 5,0. Blütezeit am Standort: April, Blütezeit in Kultur: April.

Begleitvegetation
Agave chrysantha, Agave parryi, Coryphantha vivipara, Cylindropuntia spec., Opuntia spec.

Feldnummern
DFM0017, Dieter Felix
DFM0281, Dieter Felix
DFM0543, Dieter Felix
DFM0544, Dieter Felix
DFM0545, Dieter Felix

Herbarbelege Privatherbarium Martina & Andreas Ohr (HMAO)
HMAO-001-0309, Privatherbarium Martina & Andreas Ohr
HMAO-002-0575, Privatherbarium Martina & Andreas Ohr
HMAO-002-0576, Privatherbarium Martina & Andreas Ohr
HMAO-002-0577, Privatherbarium Martina & Andreas Ohr
HMAO-002-0578, Privatherbarium Martina & Andreas Ohr
HMAO-002-0626, Privatherbarium Martina & Andreas Ohr
HMAO-003-0316, Privatherbarium Martina & Andreas Ohr
HMAO-003-0317, Privatherbarium Martina & Andreas Ohr
HMAO-003-0318, Privatherbarium Martina & Andreas Ohr
HMAO-003-0319, Privatherbarium Martina & Andreas Ohr

Herbarbelege Universitäten
ARIZ409816, University of Arizona Herbarium
ASC100549, Deaver Herbarium (Northern Arizona University)
ASU0018467, Arizona State University Vascular Plant Herbarium
ASU0018468, Arizona State University Vascular Plant Herbarium
ASU0018469, Arizona State University Vascular Plant Herbarium
ASU0018470, Arizona State University Vascular Plant Herbarium
ASU0018471, Arizona State University Vascular Plant Herbarium
ASU0076331, Arizona State University Vascular Plant Herbarium
ASU0076332, Arizona State University Vascular Plant Herbarium
ASU0076333, Arizona State University Vascular Plant Herbarium
ASU0076334, Arizona State University Vascular Plant Herbarium
ASU0076335, Arizona State University Vascular Plant Herbarium
ASU0076336, Arizona State University Vascular Plant Herbarium
ASU0076337, Arizona State University Vascular Plant Herbarium
ASU0076338, Arizona State University Vascular Plant Herbarium
ASU0076339, Arizona State University Vascular Plant Herbarium
ASU0076340, Arizona State University Vascular Plant Herbarium
ASU0076341, Arizona State University Vascular Plant Herbarium
ASU0076342, Arizona State University Vascular Plant Herbarium
ASU0076343, Arizona State University Vascular Plant Herbarium
ASU0076344, Arizona State University Vascular Plant Herbarium
ASU0076345, Arizona State University Vascular Plant Herbarium
ASU0076346, Arizona State University Vascular Plant Herbarium
ASU0076347, Arizona State University Vascular Plant Herbarium
ASU0076348, Arizona State University Vascular Plant Herbarium
ASU0076349, Arizona State University Vascular Plant Herbarium
ASU0076455, Arizona State University Vascular Plant Herbarium
ASU0076463, Arizona State University Vascular Plant Herbarium
ASU0076506, Arizona State University Vascular Plant Herbarium
ASU0076507, Arizona State University Vascular Plant Herbarium
ASU0076508, Arizona State University Vascular Plant Herbarium
ASU0076509, Arizona State University Vascular Plant Herbarium
ASU0076510, Arizona State University Vascular Plant Herbarium
ASU0076511, Arizona State University Vascular Plant Herbarium
ASU0076512, Arizona State University Vascular Plant Herbarium
ASU0076513, Arizona State University Vascular Plant Herbarium
ASU0076514, Arizona State University Vascular Plant Herbarium
ASU0076515, Arizona State University Vascular Plant Herbarium
ASU0076516, Arizona State University Vascular Plant Herbarium
ASU0076517, Arizona State University Vascular Plant Herbarium
ASU0076518, Arizona State University Vascular Plant Herbarium
ASU0076519, Arizona State University Vascular Plant Herbarium
ASU0076520, Arizona State University Vascular Plant Herbarium
ASU0076521, Arizona State University Vascular Plant Herbarium
ASU0076522, Arizona State University Vascular Plant Herbarium
ASU0076523, Arizona State University Vascular Plant Herbarium
ASU0076524, Arizona State University Vascular Plant Herbarium
ASU0076525, Arizona State University Vascular Plant Herbarium
ASU0076526, Arizona State University Vascular Plant Herbarium
ASU0076527, Arizona State University Vascular Plant Herbarium
ASU0076901, Arizona State University Vascular Plant Herbarium
ASU0076903, Arizona State University Vascular Plant Herbarium
ASU0076905, Arizona State University Vascular Plant Herbarium
ASU0076906, Arizona State University Vascular Plant Herbarium
ASU0076907, Arizona State University Vascular Plant Herbarium
ASU0078749, Arizona State University Vascular Plant Herbarium
ASU0078825, Arizona State University Vascular Plant Herbarium
DES00054287, Desert Botanical Garden Herbarium Collection
DES00061341, Desert Botanical Garden Herbarium Collection
DES00061348, Desert Botanical Garden Herbarium Collection
DES00066512, Desert Botanical Garden Herbarium Collection
DES00070779, Desert Botanical Garden Herbarium Collection
DES00070782, Desert Botanical Garden Herbarium Collection
DES00070848, Desert Botanical Garden Herbarium Collection
DES00070849, Desert Botanical Garden Herbarium Collection
DES00073494, Desert Botanical Garden Herbarium Collection
DES00073495, Desert Botanical Garden Herbarium Collection
UNM126390, University of New Mexico Herbarium
US00172036, United States National Herbarium
US01083459, United States National Herbarium
US01083460, United States National Herbarium

Empfehlenswerte Literatur
Erstbeschreibung in Plan Systematics and Evolution (siehe oben)

Standortbilder