4.17.2020

Basic Plant Family ID


look at the FLOWER & note:
- # of sepals, petals, stamen, pistils (K/ calyx, C/ corolla, A/ androecium, G/ gynoecium)
- COMPLETE (all KCAG present) or INCOMPLETE (missing KCAG)
- PERFECT (bisexual), or IMPERFECT (unisexual- monoecious/ dioecious)
- REGULAR (actinomorphic, w/ radial symmetry) or IRREGULAR (zygomorphic, w/ bilateral symmetry)
- OVARY: INFERIOR (epigynous) or SUPERIOR (hypogynous/ perigynous)
- INFLORESCENCE (solitary, head, spike, raceme, panicle, umbel, corymb, cyme)

look at the LEAVES & note:
- leaf ARRANGMENT (opposite, alternate, whorled, basal)
- leaf TYPE (simple/ compound pinnate/ palmate/ ternate)
- leaf VEINATION (arcuate, palmate, parallel, pinnate, reticulate)
- leaf MARGIN (entire, toothed, incised, lobed)
- leaf tip, base, stem, surface



Aster family (Asteraceae)
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many individual florets packed together tightly makes a COMPOSITE FLOWERHEAD:
- DISC FLOWERS forms a pitted central disc
- RAY FLOWERS ring the edge, usually with showy petals
.
2nd most common flowering plant family in the world
(1rst place goes to the Orchid family, due to their prevalance in the tropics)
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IE. Dandelion, Artemisias, Yarrow, Lettuce


Mint family (Lamiaceae)
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- square stalks
- alternating opposite leaves
- aromatic
- irregular flowers
- common useful kitchen herbs!
.
IE. Sages, Rosemary, Basil


Mustard family (Brassicaceae)
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- 4 petals
- 4 sepals
- 6 stamen (4 tall, 2 short)
- pungent
- seedpod staircase (fat silicles, or long siliques)
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IE. Kale, Cabbage, Broccoli


Rose family (Rosaceae)
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- 5 separate petals
- 5 sepals
- numerous stamen
- numerous pistils (creates a fuzzy-looking center)
- serrated compound leaves
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IE. Strawberries, Apples, Almonds


Nightshade family (Solanaceae)
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- 5 united petals
- 5 united sepals
- 5 stamen
- superior ovary with 2 chambers
- alternating leaves (often sticky, Earthy-smelling)
- alkaloid- rich
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IE. Peppers, Datura, Eggplant, Tomato


Mallow family (Malvaceae)
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- alternate, palmately lobed leaves
- numerous fused stamen form a column around the pistil
- 5 separate petals
- 3-5 partially united sepals
- mucilaginous (slimy)
- funnel- shaped regular flowers
- superior ovary with united carpels that creates “cheeses”
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IE. Okra, Cotton, Hollyhocks, Cacao, Linden