{"id":4886,"date":"2012-02-26T14:54:04","date_gmt":"2012-02-26T19:54:04","guid":{"rendered":"http:\/\/opuntiads.com?page_id=4886"},"modified":"2020-02-15T16:36:21","modified_gmt":"2020-02-15T21:36:21","slug":"cylindropuntia-fosbergii","status":"publish","type":"page","link":"https:\/\/www.opuntiads.com\/cyl\/cylindropuntia-fosbergii\/","title":{"rendered":"Cylindropuntia fosbergii"},"content":{"rendered":"

G. B. Wolf (pro sp.). 1938. Occasional Papers of the Rancho Santa Ana Botanic Garden 1: 79. <\/strong><\/h2>\n

Herbarium specimen<\/a>; Herbarium specimen<\/a><\/span><\/h3>\n

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

Jepson Manual treatment<\/a><\/span><\/h3>\n

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

Cylindropuntia fosbergii<\/em> is a narrowly endemic cholla that occurs on flats and hillsides in a very limited area of eastern San Diego County, California within the southern half of Anza-Borrego Desert State Park. <\/p>\n

Details<\/h4>\n

G. fosbergii<\/em> is tree-like and grows to 3 m tall. The stems are very easily detached. The joints are 4 to 18 cm long by 2 to 5.5 cm wide with dense pinkish spines. This, plus its overall resemblance to G. bigelovii<\/em> gives it the common name “pink teddy bear cholla”. The flowers are pink to bronze with green filaments. The fruits are dry to leathery and generally sterile. G. fosbergii<\/em> is triploid (2n = 33), hence its dependence on clonal reproduction. It is possible that, like G. bigelovii<\/em>, it produces occasional diploid individuals, but this has not yet been shown.<\/p>\n

G.  fosbergii<\/em> has been described as a hybrid between G. bigelovii<\/em> and G. echinocarpa<\/em>, but neither morphological nor genetic studies support that hypothesis. Mayer et al. (2011)<\/a> attempted to determine the parentage of G. fosbergii<\/em>. None of the Cylindropuntia<\/em> included in that study, other than G. bigelovii<\/em>, appeared to be closely related to G. fosbergii<\/em>. It is possible that G. fosbergii<\/em> resulted from an ancient hybridization event with a now-extinct parent species or perhaps a Baja species such as G. alcahes<\/em> that may have had a more widespread distribution in the past. Until further information is uncovered regarding G. fosbergii<\/em>‘s possible hybrid origin, the Jepson Manual authors have decided to treat it as a good species in its own right.<\/p>\n

G. fosbergii is included in the California Native Plant Society Rare Plant Inventory as a List 1B.3 (rare, threatened, or endangered in California and elsewhere; not very endangered in California). Although it has a very narrow range, the entire range is within Anza-Borrego Desert State Park.<\/p>\n

Tom Chester’s Plants of Southern California<\/a> website provides an expansive article about G. fosbergii<\/em> and other southern California Cylindropuntia<\/em>. G. fosbergii<\/em> has previously been known as Opuntia bigelovii <\/em>var. hoffmannii<\/em>, but this name is invalid.<\/p>\nngg_shortcode_0_placeholder\n","protected":false},"excerpt":{"rendered":"

G. B. Wolf (pro sp.). 1938. Occasional Papers of the Rancho Santa Ana Botanic Garden 1: 79.  Herbarium specimen; Herbarium specimen Original description Jepson Manual treatment What is Cylindropuntia fosbergii? Cylindropuntia fosbergii is a narrowly endemic cholla that occurs on flats and hillsides in a very limited area of eastern San Diego County, California within … Continue reading “Cylindropuntia fosbergii”<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":12,"comment_status":"open","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-4886","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/pages\/4886","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=4886"}],"version-history":[{"count":0,"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/pages\/4886\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.opuntiads.com\/cyl\/wp-json\/wp\/v2\/media?parent=4886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}