{"id":5831,"date":"2012-03-10T18:02:37","date_gmt":"2012-03-10T23:02:37","guid":{"rendered":"http:\/\/opuntiads.com?page_id=5831"},"modified":"2020-02-17T09:04:42","modified_gmt":"2020-02-17T14:04:42","slug":"cylindropuntia-whipplei-2","status":"publish","type":"page","link":"https:\/\/www.opuntiads.com\/cyl\/cylindropuntia-whipplei-2\/","title":{"rendered":"Cylindropuntia whipplei"},"content":{"rendered":"

G. Engelmann & J. M. Bigelow. 1856 [1857]. Proceedings of the American Academy of Arts and Sciences 3: 307.<\/strong><\/h2>\n

Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a>; Herbarium specimen<\/a> (submitted as Opuntia whipplei <\/em>var. enodis<\/em>); Drawing<\/a> (The Botany of the Expedition<\/a>, 1856, plate XXVII)<\/p>\n

Original description<\/a><\/span><\/h3>\n

Flora of North America treatment<\/a><\/span><\/h3>\n

What is Cylindropuntia whipplei?<\/em><\/span><\/h3>\n

Cylindropuntia whipplei<\/em> grows in desert grasslands, juniper-pinyon woodlands, oak and pine forests, and sagebrush scrub from 900-2300 m elevation. It occurs from Nevada and northern Arizona to southwestern Colorado and northern Utah and into New Mexico.<\/p>\n

Details<\/h4>\n

G. whipplei<\/em> varies in its habit from very small, mat-like shrubs to tree-like shrubs up to 1 m tall. The stems are firmly attached and range from 3 to 9 cm long by 0.5 to 1.5 cm wide. The areoles generally have 3 to 8 white, yellow, or pale red-brown spines, and sheaths are white to pale yellow. Many areoles have 3 to 6 spines with white to yellow sheaths. The flowers and filaments are greenish-yellow with white, yellowish, or pale green styles and stigmas. The fruits are yellow to green, fleshy, and spineless. <\/p>\n

G. whipplei<\/em> has two varieties. The typical variety, G. whipplei<\/em> var. whipplei<\/em>, is diploid (2n = 22) and has fruits which are thin-walled (<5 mm thick) and bright yellow with many seeds. G. whipplei<\/em> var. enodis<\/em> is tetraploid (2n = 44) and has fruits which form chains and are thick-walled (>7 mm thick), green to dull yellow, and generally sterile or with very few seeds. G. whipplei<\/em> var. enodis<\/em> also has shorter, thinner stems, smaller tubercles, and fewer spines on average than G. whipplei <\/em>var. whipplei<\/em>. <\/p>\n

A population of Cylindropuntia whipplei<\/em> near Grand Canyon Caverns was originally designated “Opuntia hualpaensis<\/em>” by Hester in 1943. Plants in this area are a mixture of diploids and tetraploids and are generally morphologically intermediate between G. whipplei <\/em>var. whipplei<\/em> and G. whipplei <\/em>var. enodis<\/em>. It is therefore hypothesized that this is where G. whipplei <\/em>var. enodis<\/em> originated as an autotetraploid (Baker 2016, in press). <\/p>\n

G. whipplei<\/em> hybridizes with G. acanthocarpa<\/em> in central Arizona (G. <\/em>\u00d7congesta<\/em>). It is also known to hybridize with G. leptocaulis, G. imbricata <\/em>(G. <\/em>\u00d7viridiflora<\/em>), <\/em>and G. echinocarpa<\/em>. Contrary to the statement in the Flora of North America treatment, G. whipplei <\/em>x G. echinocarpa<\/em> is not G. multigeniculata<\/em>, as morphological analyses have shown G. multigeniculata<\/em> to be a distinct species in its own right<\/a>. <\/p>\nngg_shortcode_0_placeholder\n","protected":false},"excerpt":{"rendered":"

G. Engelmann & J. M. Bigelow. 1856 [1857]. Proceedings of the American Academy of Arts and Sciences 3: 307. Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen; Herbarium specimen (submitted as Opuntia whipplei var. enodis); Drawing (The Botany of the Expedition, 1856, plate XXVII) Original … Continue reading “Cylindropuntia whipplei”<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":8,"comment_status":"open","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-5831","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/pages\/5831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/comments?post=5831"}],"version-history":[{"count":0,"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/pages\/5831\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/media?parent=5831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}