Flashcards
Forbs
Flashcards do conjunto (22)
- 1What's a Forb?An Herbaceous plant that isn't a grass. (Wildflowers)
- 2Apocynaceae (Dogbane family)Any habit, Milky Sap.
Leaves Simple, Entire, Opp/Whorled
Fruits follicles, berries, or drupes.
Contain alkaloids & cardiac glycocides
Milkweed (Asclepias) - 3Asclepias (Milkweeds)Perennial herb, Milky sap.
Simple, opp/whorled, entire.
Flowers bisexual w/5 drooping petals,
Fruits follicles w/ many tufted seeds.
Alkaloids & Cardiac Glycogins - 4Asteraceae (Sunflower and Aster family)Any habit, annual/biannual/perennial.
Fibrous Taproots.
Alt or Opp, s/t basal rosette, mostly simple leaves.
Composite head inflorescence.
Fruits Cypsela
(Artemisia, Cirsium, Helianthus) - 5Artemisia (Sagebrush)Herbs, aromatic when handled.
Leaves alt, entire, toothed, or dissected
Flower heads small, on branched/unbranched clusters, yellowish.
Small, hard, 1 seeded fruit. - 6Cirsium (Thistle)Herbs w/any growth cycle, s/t w/ narrow spiny wings.
Leaves alt or basal w/ spiny tips & lobes.
Head w/ Disc Florets only.
Fruits w/ persistent plumose pappas - 7Helianthus (Sunflower)Annual/Perennial herb, erect & branched.
Leaves basal/cauline. Opp, alt, or both on same plt.
Head w/ both discs, and sterile rays.
Pappas falls before fruit is ripe - 8FabaceaeAny habit, Nitrogen Fixation
Alt, usu. Comp (pinnate)
Flowers radial/bilateral, 5merous.
Legume fruit
(Chamaecrista, Desmodium) - 9Chamaecrista (Sensitive pea/bean)Annual/Perennial w/taproot.
Alt, Pinnate, w/nectar glands & stipules.
Irregular, 5merous yellow flowers.
Flattened, twisty legumes. - 10Desmodium (Tick Trefoil)Mostly upright perennials.
Leaves alt, trifoliate, w/ stipules
Flowers pink, bilateral, 5merous.
Fruits legumes w/hooked hairs that break apart. (Loments) - 11Polygonaceae (Buckwheat family)Any habit, prostrate & erect stems.
Leaves mostly alt w/ an Ocrea of stipules.
Flowers usually bisexual.
Fruits w/3 rounded sides.
(Polygonum) - 12Polygonum (Smartweed/Knotweed)Herbs/subshrubs, Annual w/prostrate stems.
Leaves alt w/ocrea
Flowers small, white-green-pink, bisexual.
Small seeds, VERY numerous. - 13Rosaceae (Roses)Shrbs/trees, few herbs.
Alt, Simple/comp, toothed, w/Stipules.
Showy bisexual flowers, 5merous, hypanthium.
Fruits include hypanthium (hips)
(Fragaria) - 14Fragaria (Strawberries)Low-growing perennial from rhizomes.
Erect petioles, 3 coarse-toothed leaflets.
Flowers w/5 white petals on domed receptacle, w/20 stamens.
Fruits Aggregates w/accessories. - 15Give examples of drupes.Apples, cherries, plums, dogwood fruit, holly, hackberries, etc.
- 16How does a nurse plant compare to a nurse log?Both provide favorable habitat that facilitates the growth of other species.
- 17What nutrients are found in nectar?Sugar and Amino Acids
- 18What's a pappus.A specialized structure in Asteraceae deriving from a calyx atop an inferior ovary.
- 19What's a Stipule?Paired appendages at the node end of the petiole.
- 20What genus has prominent, paired nectar glands on the petioles?Prunus in Rosaceae
- 21What's an aggregate fruit? Give an example.A fruit developed in a single flower from several fused carpels.
For example, raspberries, blackberries, etc. - 22What is an accessory fruit?A fruit developed from other tissues in addition to the ovary.
Informações
- Descrição
- Vegetative characteristics for important families/genera of herbaceous plants for bio552. For importance to wildlife, read through the powerpoints.
- Criado por
- Wes Smalley
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