Very Important Rosids

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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 K5C5A10-15G2-5
• 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,
• K5cnC5A(5,9)10-manyG1LEGUME
• 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. K5C5AmanyG????
• 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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