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Published byEthelbert O’Connor’ Modified over 9 years ago
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Very Important Rosids
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Rosids Many families in Utah Lab: skipping lots of families with few genera in Utah Some are included in this overview
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Zygophyllales: Zygophyllaceae Name means ‘twin leaf’ Trees, shrubs, herbs, woody stems jointed Lvs opp, 2-ranked, oft even-pinnate Rad: K 5 C 5 A 10-15 G 2-5 Southern Utah: Larrea Here: Tribulus
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Oxalidaceae Best known here for what is sold as shamrock – Oxalis Caramobola, Star fruit Oxalic acid
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Celastraceae One native, lots of ornamentals Paxistima – good browse species? Early flowering
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Euphorbiaceae
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Violaceae
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Salicaceae
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Fabaceae Third largest family with 18,000 High nitrogen metabolism, often symbiotic with bacteria Lvs alt, usually compound Inflorescence usually indeterminate Flowers varied, fruit rather constant
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Fabaceae (cont). Sometimes (inc. Shaw) as 3 families, sometimes as Leguminosae (Welsh) Rad or Bil, Hypanthium, K 5cn C 5 A (5,9)10-many G 1 LEGUME Faboidae: papilionaceous flower Banner, wing, keel
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Rosaceae Hypanthium, radial symmetry, lots of stamens Flower more or less constant, fruit varies Herbs, shrubs, trees Lv alt, with stipules, simple or compd, often with gland tipped teeth
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Rosaceae (Cont) Fruits eaten, also many ornamentals Rad. K 5 C 5 A many G ???? Groups: Spiraea type: Superior ovary, several separate carpels, capsules Rose type: Superior ovary, several separate carpels, achenes FLESHY HYPANTHIUM
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More Rosaceae Raspberry type: Superior ovary, several separate carpels, drupelets Strawberry type: Superior ovary, several separate carpels, achenes, fleshy receptacle Plums: INFERIOR ovary, 1 carpel, 1 seed, drupe
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