Cephalanthus occidentalis

Cephalanthus occidentalis
Cephalanthus occidentalis
C. o. var. occidentalis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Gentianales
Family: Rubiaceae
Genus: Cephalanthus
Species: C. occidentalis
Binomial name
Cephalanthus occidentalis
L., 1753[1]
Varieties

C. o. var. californicus
C. o. var. occidentalis

Cephalanthus occidentalis is a species of flowering plant in the coffee family, Rubiaceae, that is native to eastern and southern North America. Common names include Buttonbush, Common Buttonbush, Button-willow and Honey-bells.

Contents

Description

C. occidentalis is a deciduous shrub or small tree that averages 1–3 m (3.3–9.8 ft) in height, but can reach 6 m (20 ft). The leaves are opposite or in whorls of three, elliptic to ovate, 7–18 cm (2.8–7.1 in) long and 4–10 m (13–33 ft) broad, with a smooth edge and a short petiole. The flowers are arranged in a dense spherical inflorescence 2–3.5 cm (0.79–1.4 in) in diameter on a short peduncle. Each flower has a fused white to pale yellow four-lobed corolla forming a long slender tube connecting to the sepals. The stigma protrudes slightly from the corolla. The fruit is a spherical cluster of achenes (nutlets).[2]

Taxonomy

There are two varieties, not considered distinct by all authorities:

Habitat

Buttonbush is a common shrub of many wetland habitats in its range, including swamps, floodplains, mangrove, pocosin, riparian zones, and moist forest understory.[3] It is a member of the flora in the Everglades.[3]

Ecology

Waterfowl and other birds eat the seeds. Wood Ducks utilize the plant as nest protection. Deer browse the foliage. Insects and hummingbirds take the nectar, with bees using it to make honey.[3][4]

Distribution

Besides the eastern United States, and eastern regions of the Midwest, notable areas range into Arizona, the Mogollon Rim, and other mountain ranges; in California, the entire San Joaquin Valley[5] West of the Great Plains and the Rocky Mountains, only western Texas, Arizona, and California find C. occidentalis.

Uses

Medicinal

C. occidentalis has a number of historical medicinal uses, but it is also toxic due to the presence of cephalathin.[4][3]

Cultivation

Buttonbush is cultivated as an ornamental plant for a nectar source or 'honey plant' and for aesthetics in gardens and native plant landscapes, and is planted on slopes to help control erosion.[6]

San Joaquin Valley landmark tree

The town of Buttonwillow, California was named for the Buttonbush (Cephalanthus occidentalis). A lone buttonbush served as a landmark on an old trans-San Joaquin Valley trail, and was used by ancient Yokut Indians as a meeting place. It later became the site of settlers' stock rodeos. This buttonbush tree is listed as California Historical Landmark No. 492, and is now known as the "Buttonwillow Tree."

References

  1. ^ "Cephalanthus occidentalis L.". Germplasm Resources Information Network. United States Department of Agriculture. 1994-08-23. http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?9854. Retrieved 2010-01-04. 
  2. ^ "Cephalanthus occidentalis L. buttonbush" (PDF). Wildland Shrubs of the United States and its Territories: Thamnic Descriptions. United States Forest Service. http://www.fs.fed.us/global/iitf/pdf/shrubs/Cephalanthus%20occidentalis.pdf. Retrieved 2009-09-14. 
  3. ^ a b c d "Cephalanthus occidentalis". Fire Effects Information System. United States Forest Service. http://www.fs.fed.us/database/feis/plants/shrub/cepocc/all.html. 
  4. ^ a b "Common Buttonbush Cephalanthus occidentalis L." (PDF). Natural Resources Conservation Service Plant Guide. United States Department of Agriculture. http://plants.usda.gov/plantguide/pdf/pg_ceoc2.pdf. 
  5. ^ Little. Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Little, Elbert L, 1976, US Government Printing Office. Library of Congress No. 79-653298. Map 34-NW, Map 34-SW, Cephalanthus occidentalis.
  6. ^ O'Sullivan, Penelope (2007). The Homeowner's Complete Tree & Shrub Handbook: The Essential Guide to Choosing, Planting, and Maintaining Perfect Landscape Plants. Storey Publishing. p. 197. ISBN 9781580175715. http://books.google.com/books?id=VSZmm76pVw8C&. 

External links

Data related to Cephalanthus occidentalis at Wikispecies Media related to Cephalanthus occidentalis at Wikimedia Commons


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  • Cephalanthus occidentalis — Buttonbush But ton*bush , n. (Bot.) A shrub ({Cephalanthus occidentalis}) growing by the waterside; so called from its globular head of flowers. See {Capitulum}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Cephalanthus occidentalis — ID 16841 Symbol Key CEOC2 Common Name common buttonbush Family Rubiaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, AZ, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME,… …   USDA Plant Characteristics

  • Cephalanthus occidentalis L. — Symbol CEOC2 Common Name common buttonbush Botanical Family Rubiaceae …   Scientific plant list

  • Cephalanthus occidentalis L. var. californicus Benth. — Symbol CEOC2 Synonym Symbol CEOCC2 Botanical Family Rubiaceae …   Scientific plant list

  • Cephalanthus occidentalis L. var. pubescens Raf. — Symbol CEOC2 Synonym Symbol CEOCP2 Botanical Family Rubiaceae …   Scientific plant list

  • Cephalanthus — occidentalis Scientific classification Kingdom …   Wikipedia

  • Cephalanthus —   Cephalanthus …   Wikipedia Español

  • Cephalanthus — (C. L.), Pflanzengattung aus der Familie der Rubiaceae Coffeaceae Spermacoecae Cephalantheae, 4. Kl. 1. Ordn. L. Art: C. occidentalis, nordamerikanischer Baum, mit weißen, wohlriechenden Blumenköpfen u. länglichen, wolligen Samen, zur… …   Pierer's Universal-Lexikon

  • Cephalanthus — L. (Kopfblume), Gattung der Rubiazeen, Sträucher mit gegenständigen oder wirteligen, ganzen Blättern und achsel oder endständigen, einzeln oder rispig geordneten, langgestielten Blütenköpfchen. Von den sechs meist amerikanischen Arten wird C.… …   Meyers Großes Konversations-Lexikon

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