Flowering Plants Flashcards
Columbine
Five spurred petals
Monkshood or wolfsbane
- yields aconite - drug once used to treat rheumatism and neuralgia
- very poisonous
- wolf hunters used juice from roots to poison wolves
Dicots - the laurel family
- Lauraceae
- about 1,000 species of tropical evergreen shrubs and trees
- no petals, but sepals sometimes petal-like
- stamens in three or four whorls, anthers open by flaps that lift up
- cinnamon - pulverized bark of small tree
- cassia
- camphor - cold remedies, insecticides
- sassafras trees - native to eastern US
- sweet bay - flavoring in meat dishes
- avocado
- California bay
Dicots - the poppy family
- Papaveraceae
- herbs of temperate and subtropical regions
- numerous stamens, but single pistil
- milky or colored sap
- all species produce alkaloidal drugs
- opium poppies
- prickly poppy flower
Opium poppies
- opium - white fluid from capsules
- morphine and codeine - heroin
- papaverine and noscapine
- poppy seeds
Dicots - the mustard family
- Brassicaceae
- nearly all 2,500 species in temperate and cooler regions of North America
- four flower petals arranged in a cross
- six stamen: 2 short, 4 long
- fruits - siliques or silicles
- all produce pungent watery juice
- many cultivated edible plants: cauliflower, Brussels sprouts, broccoli, radish, turnip, horseradish, watercress, rutabaga
- mustard - ground seeds of two species of Brassica
Dicots - the rose family
- Rosaceae
- more than 3,000 species of trees, shrubs, and herbs
- flowers have basal parts fused into cup, with petals, sepals and numerous stamens attached to cups rim
- family subdivided into subfamilies on basis of flower structure and fruits
- stone fruits, pome fruits, aggravate fruits, garden ornamentals (roses), fragrances, and fruits of roses
Stone fruits
Cherries, apricots, peaches, and plums
Pome fruits
Apples, pears
Aggregate fruits
Strawberries, blackberries, raspberries
Fruits of roses
Hips - vitamin C
Dicots - the legume family
- Fabaceae
- third largest of flowering plant families with 13,000 species
- cosmopolitan
- flowers radial to bilateral
- stamens fused into tube around ovary
- fruit is a legume
- peas, beans, soybeans, peanuts, alfalfa, sweet clover, licorice, carob
Dicots - the spurge family
- Euphorbiaceae
- in tropical and temperate regions
- several economically important plants: cassava, para rubber tree
- stamens and pistils produced in separate flowers
- flowers often inconspicuous and lack Corolla
Cassava
Staple food in tropical regions
Para rubber tree
Crude rubber from latex of inner bark
The spurge family
Inflorescence - cyathium
- female flower elevated on stalk called gynophore and surrounded by several male flowers that each consist of little more than an anther
- male and female flowers inserted on a cup composed of fused bracts, usually with glands on rim
- sometimes surrounded by colored bracts
Dicots - the cactus family
- Cactaceae
- more then 1,500 species native only to Americas in dry, subtropical regions
- leaves reduced in size, often spines
- fleshy stems
- flowers showy - numerous stamens, petals, and sepals - inferior ovary develops into berry
- most have edible fruit - prickly pear fruits
Dicots - the mint family
- Lamiaceae
- 3,000 species
- unique combination of angular stems that are square in cross section, opposite leaves, and bilaterally symmetrical flowers
- ovary superior and four-parted, developing into four nutlets
- plants produce mint oils
Mint oils
- used medicinally and as antiseptic in different parts of the world
- menthol used in toothpaste, candies, gum, liqueurs, and cigarettes
- Rosemary, thyme, sage, oregano, marjoram, basil, lavender, catnip, pappermint, spearmint
Dicots - the nightshade family
- Solanaceae
- 3,000 species concentrated in tropics of central and South America
- flowers have fused petals with stamens fused to corolla
- superior ovary develops into berry or capsule
- tomato, white potato, eggplant, peppers, tobacco, petunia
- many poisonous and some have drug uses
Many nightshade are poisonous and some have drug uses
- belladonna drug complex
- capsicum from red pepper - gastric stimulant
- jimson weed - asthma
- tobacco
Belladonna drug complex
- atropine - shock treatment, pain relief
- scopolamine - tranquilizer
Dicots - the carrot family
- Apiaceae
- approx 2,000 members widely distributed in northern hemisphere
- savory-aromatic herbs, with dissected leaves, and petiole bases that form sheaths around stem
- flowers small, numerous and arranged in umbels
- inferior ovary and two-lobed stigma
- dill, celery, carrot, parsley, caraway, coriander, fennel, anise, parsnip
- some poisonous: water hemlock
Water hemlock
Socrates believed to have died from ingestion
Dicots - the pumpkin family
- Cucurbitaceae
- 700 species of prostrate or climbing herbaceous vines
- flowers unisexual with fused petals
- female flowers with inferior ovary of three carpels
- pumpkins, squashes, cucumbers, cantaloupes, gourds
Dicots - the sunflower family
- Asteraceae
- second largest flowering plant family with about 20,000 species
- dandelions, lettuce, endive, chicory, artichoke, dahlia, chrysanthemum, marigold, sunflower, thistle
- tarragon
- florets arranged in compact inflorescence that resembles a single flower
Tarragon
Spice in meat and pickle
Florets
Individual flowers
Monocots - the grass family
- Poaceae
- flowers wind-pollinated and highly specialized
- calyx and corolla are tiny scales
- flowers protected in boat-shaped bracts
- stigmas exposed and feathery
- leaf bases sheath stems
- contains nearly all cereals: wheat, barley, rye, oats, rice, corn
- sugar cane - six meters tall
- baskets, fibers, thatching for nuts
- citronella oil
Sugar cane
- Juice squeezed from cane, then centrifuged
- solids crystallized into table sugar
- dark remnant - molasses
Monocots - the lily family
- Liliaceae
- approx 4,550 members that occur in almost any area supporting vegetation
- flowers often large and their parts are in multiples of three, with sepals and petals often resembling each other
- lilies, daffodils, asparagus, sarsaparilla, aloe, onions, garlic
- meadow saffron
- bowstring helps (sansevierias)
Meadow saffron
Source of colchicine used to treat rheumatism
Bowstring hemps
House plants; long fibers for string, rope, bowstrings
Monocots - the orchid family
- Orchidaceae
- very large family with more than 35,000 species, especially abundant in tropics
- widely distributed with diverse habitats
- flowers exceptionally varied in size and form
- many epiphytic on bark of trees
- others aquatic or terrestrial and saprophytic
- specific adaptations between orchid flowers and pollinators are extraordinary and sometimes bizarre
- vanilla from vanilla orchid
- three sepals and petals, with one of petals differing from other two
- stamens and pistil united in single structure - column
- minute seeds produced in prodigious numbers
Anthers contain sacs of pollen called ___
Pollinia
Dicots - The buttercup family
- Ranunculaceae
- nearly all 1500 species are herbaceous
- petals vary in number
- numerous stamens
- several to many pistils with superior ovaries
- concentrated in north temperate and arctic regions
- most as least slightly poisonous
- columbine, hepatica, monkshood or wolfsbane