increasingly widely cultivated in the Flora region, they are most common in the coastal and southern states. Most of the cultivated species are Asian in origin, but
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Native to China, cultivated in the flora. Genus 1 (6+ known from fossils), species 1. Page, C. N. 1990. Coniferophytina: Ginkgoaceae. In: K. Kubitzki et
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Africa. Species 52 (1 in the flora). Several species of Watsonia are cultivated in the flora area where the winters are mild, especially in California; only
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as garden escapes in areas of the continent outside their natural ranges. Two Eurasian species that are widely cultivated in the flora area also escape
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occasionally referred to as the beefwood family or the Australian-pine family. Species have been cultivated in the warmest parts of the flora as ornamentals and
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smaller flowers, dense indument, and all leaves simple, is sometimes cultivated in the flora area. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"
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2000 (139 in the flora). Euphorbia is one of the two or three most species-rich angiosperm genera worldwide. Members of the genus occur in almost all
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a good source of fodder and hay in Russia (Tzvelev 1976). One species has been cultivated in the Flora region. Tzvelev, N.N. 1976. Zlaki SSSR. Nauka, Leningrad
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Hasskarl in some treatments (K. A. Wilson 1960). Other forms of C. esculenta are cultivated in the flora area both for food and as ornamentals. The species
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Spodiopogon sibiricus extends north to Irkutsk, Russia. One species is cultivated in the Flora region. None. Spodiopogon sibiricus window.propertiesFromHigher
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number. The cross-sectional anatomy of its leaf blades is unique among the Stipeae (Vazquez and Barkworth 2004). One species is cultivated in the Flora region
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open to the base, margins sometimes extending beyond the base of the ligule, the extensions often conspicuously hairy, sometimes grading into the ligule;
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Agrimonia eupatoria Linnaeus Agrimonia eupatoria has been sporadically cultivated in the flora area. No evidence has been found that this introduced European species
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domestica is commonly cultivated as an ornamental. China and Japan have been considered the possible sources of cultivated material. In the flora, seedlings are
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Additional species are cultivated in the flora area. All reports of Gypsophila acutifolia Steven ex Sprengel, G. perfoliata Linnaeus in the narrow sense, G.
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Paraguay, Uruguay). Passiflora caerulea is cultivated widely in the flora area but naturalized only in the Los Angeles metropolitan area (see F. Hrusa
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naturalized in Alberta, British Columbia, California, and Washington are undocumented. The variants of Salix alba, commonly cultivated in the flora area, are
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Myanmar. It is cultivated occasionally in the Flora region. Edgar and Conner (2000) report that, in New Zealand, M. nepalensis has escaped cultivation and is
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10. The subfamily Pooideae includes approximately 3300 species, making it the largest subfamily in the Poaceae. It reaches its greatest diversity in cool
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892 species are native to the Flora region; 2 tribes, 78 genera, and 290 species have become established in the region. The remaining taxa include ornamental
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except in desert areas. In the tropics, especially in South America, the family is diverse in upland and montane areas, and notably diverse in such genera
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weedy in North America. The widespread distribution of the family in the deserts of Eurasia and Australia is indicative of the ancient status of the family
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all 3 spikelets sessile in cultivated plants; disarticulation usually in the rachises, the spikelets falling in triplets, cultivated forms generally not disarticulating
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sterile florets below the sexual floret, these no more than 1/2 (9/10) the length of the fertile floret; unisexual spikelets in the same or different panicles;
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cosmopolitan weeds, and Emex is a pernicious weed in parts of the world. Of the 35 genera in the flora, four are entirely non-native: Emex, Fagopyrum, Muehlenbeckia
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Australia, introduced in Bermuda. Genera 5, species ca. 800 (1 genus, 36 species in the flora). Oxalidaceae occurs mostly in the tropics and subtropics
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including cultivated species). Some segregate genera of Amaranthus, in the broad sense, have been proposed and sometimes recognized (see synonymy). In the present
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rachillas not prolonged beyond the base of the floret in spikelets with 1 floret, prolonged beyond the base of the distal floret in spikelets with 2-6 florets
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Genera 50–52, species 900–950 (15 genera, 105 species in the flora). The fused, cuplike basal portion of the flower has been variously called a hypanthium (as
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000 (701 genera, 208 species in the flora; 1 genus, 6 species introduced). The overall count for orchid genera in the flora includes Spathoglottis plicata
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1997)––predating the appearance of maize, beans, and other directly dated domesticates in the Americas by about 4000 years. The oldest known cultivated maize cobs
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relations among the genera of Amaranthaceae in the New World and the Hawaiian Islands. Bot. J. Linn. Soc. 96: 235–283. Robertson, K. R. 1981. The genera of Amaranthaceae
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include four of the seven native genera found in the flora area, are the basal clades within Araceae. Plants in these subfamilies possess the primitive states
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morphology of the carpel in the Liliaceae: Uvularieae. Bot. J. Linn. Soc. 74: 345–354. Sterling, C. 1979. Comparative morphology of the carpel in the Liliaceae:
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Widespread in tropical and subtropical regions, less common in temperate areas. Genera ca. 40, species nearly 1100 (7 genera, 18 species in the flora). Members
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elsewhere. In this treatment, I describe the tubercle (style base) after the achene in consecutive sentences to stress the separate nature of the two structures
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(5 genera, 40 species in the flora). Affinities of Cistaceae are evidently with Malvales. Members of Cistaceae are widely cultivated, especially cultivars
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Eckenwalder 1976; R. A. Price 1989). The unity of the family is best shown in the structure of the mature seed cones: the bract-scale complexes are intimately
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effort and experience. In the descriptions, "base of cleft" refers to the point where the cleft or sinus reaches most deeply into the petal blade. Ewan, J
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mostly 15–25+ mm) borne on peduncles mostly 3–15+ cm are cultivated in warm areas of the flora and may be encountered sporadically outside plantings. They
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moscheutos) have been the basis of selections of hardy Hibiscus available in the horticultural trade. A popular cultivated form in the South is the result of an
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13 species in the Flora region: five native and one possibly native, four established, two grown as commercial crops, and one in research. In North America
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World (H. Brucher 1989). In the southern United States, some species in each genus are cultivated and represented in the flora, and at least one species of
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pedicel apices cupulate; disarticulation beneath the spikelets, in cultivated strains disarticulation delayed, the spikelets tending not to shatter until harvested
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elongating stalk in Caulophyllum. Widespread, well represented in the north temperate zone. Genera 15, species ca. 650 (8 genera, 33 species in the flora). Berberidaceae
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species for use in preparing the illustrations, and for his helpful suggestions for the keys and descriptions. In the keys and descriptions, the distances from
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species in the flora). In addition to the species treated here, Illecebrum verticillatum Linnaeus was collected in 1912 as a weed in a plant nursery in Reading
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Treatment appears in FNA Volume 6. Treatment on page 181. Mentioned on page 172, 173, 175. Illustrator: Linny Heagy Copyright: Flora of North America Association
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native to the Eastern Hemisphere. There are 27 species in the Flora region; fifteen are native, nine are established introductions, one is cultivated, and two
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not prolonged beyond the base of the distal floret; disarticulation above the glumes, usually also beneath the florets, cultivated forms not disarticulating
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