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Peucedanum ostruthium

(Masterwort)

Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in English:

Masterwort

Common Names in Italian:

Elafobosco Erba Renna, Imperatoria Vera

Description

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Genus Peucedanum

Herbs perennial . Rootstock short, crown usually bearing remnant leaf sheaths . Stem finely striate , dichotomously branched above. Leaves petiolate ; petioles sheathing . Umbels loosely compound , terminal and lateral ; bracts numerous or absent; rays numerous or few; bracteoles numerous, rarely few or absent. Calyx teeth short or obsolete . Petals usually white, occasionally pinkish or purplish, rarely pale yellow, orbicular to obovate , with a narrow inflexed apex. Stylopodium low-conic. Fruit ellipsoid , oblong to suborbicular , dorsally compressed ; dorsal ribs filiform , slightly prominent , lateral ribs thickened and narrowly winged , wings closely appressed to one another; vittae 1 to several in each furrow, 2 to several on commissure . Seed face plane or slightly concave . Carpophore bipartite .

Between 100 and 200 species: Africa, Asia, Europe; 40 species (33 endemic) in China.

The taxonomy of this widespread, heterogeneous genus has long been problematic. The broad circumscription of Peucedanum adopted here includes some 100120 species from many parts of the Old World that are weakly united by basic (especially external) fruit structure. These fruit characters are undoubtedly the result of several lines of convergent evolution, and some authors prefer to recognize several segregate genera and reduce Peucedanum to only 810 Eurasian species based around the nomenclatural type, P. officinale Linnaeus.[1]

Physical Description

Flowers: Bloom Period: June, July, August. • Flower Color: cream, near white, tan, white

Habitat

Typically found at an altitude of 0 to 4,701 meters (0 to 15,423 feet).[2]

Biology

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Growth

Sunlight: Sun Exposure: Full sun .

Temperature: Cold Hardiness: 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b. (map)

Taxonomy

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Synonyms

Imperatoria ostruthia L.

Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Peucedanum

ZipcodeZoo has pages for 8 species, subspecies, varieties, forms, and cultivars in this genus:

P. franchetii (Peucedanum) · P. officinale (Hog's Fennel) · P. ostruthium (Masterwort) · P. palustre (Hog's Fennel) · P. pastinaca (Wild Parship) · P. praeruptorum var. grande (Peucedanum) · P. sandwicense (Makou) · P. sativum (Wild Parship)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal December 07, 2007:

Identifiers

Footnotes

  1. Sheh Meng-lan, Mark F. Watson "Peucedanum". in Flora of China Vol 14 Page 182. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Mean = 245.200 meters (804.462 feet), Standard Deviation = 441.230 based on 78,410 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012