Plant Families commonly found in Southwestern Oregon
Terms in this set (60)
Willow Family - flowers unisexual, dioecious, subtended by a hairy bract; seeds cotton-like.
Birch Family - flowers unisexual, dioecious, subtended by a hairy bract; seeds cotton-like.
Oak Family - staminate (male) flowers in catkins, pistillate (female) flowers forming typical acorn-like fruits, some with very spiny involucres.
Wild Ginger Family - sepals fused, petal-like, 3 lobed with long "tails" in Asarum, trumpet- (saxophone?)-like in Aristolochia
Buckwheat Family - leaves usually with ochreas (papery growth at base of petiole that sheaths the stem); flowers without petals, sepals 4, 5, or 6, petal-like; stamens 6 or 9; fruit often 3 winged
Spurge Family - sap milky; bracts petal-like; ovary 3-lobed, on a flexible stalk; flowers unisexual
Goosefoot Family - surfaces often whitish, mealy, scurfy; flowers inconspicuous, green.
Barberry Family - perianth in whorles of 3 (or absent in Achlys); stamens also in whorles of 3, equal in number to petals; anthers dehiscing by valves
Laurel Family - perianth small, undifferentiated, 6 parted; stamens in several whorles of 3; anthers open by valves
Poppy Family - petals 4 (or 6), crumpled; stamens usually many; calyx falls off when flowers open; sap yellowish-milky; capsules often dehiscent by valves or pores (elastic in Eschscholzia).
Bleeding Heart Family - leaves highly divided; petals 4; flowers flattened, pendant
Mustard Family - sepals 4; petals 4; stamens 6: 2 short, 4 long; fruits = siliques (most)
Madder Family - stamens 4; leaves with stipules (sometimes indistinguishable from leaves), opposite or whorled
Evening Primrose Family - ovary strongly inferior, long and slender; stigma often four branched; sepals, petals and stamens arise from a hypanthium
Dogwood Family - flowers tiny, clustered, usually subtended by showy, petal-like bracts; stamens 4
Check Philadelphus or Whipplea - Flowers in both of these genera may vary in petal number from 4 to 6.
Pitcher Plant Family - leaves tubular, hollow, hooded; insectivorous
Sundew Family - leaves with sticky, red, club-shaped glands on upper surface; insectivorous
Purslane Family - sepals 2; leaves usually fleshy (up to 9 petals present in Lewisia)
Flax Family - stems long and narrow, very tough; fruit is a capsule; petals contorted in bud
Pink Family - leaves opposite with clasping bases; petals often notched or deeply divided
Wood-sorrel Family - leaves palmately 3 parted on long petioles (shamrock-like); fruit dehiscing elastically; stamens 5 long, 5 short, united at their
Maple Family - leaves opposite, palmately lobed; fruit winged
Mallow Family - lowers showy; stamens fused into a column; fruit separating into nut-like carpels
Stonecrop Family - leaves succulent; ovaries = petal number; stamens 2x petals.
Buttercups - leaves often divided or compound; flowers regular or irregular, sometimes spurred; stamens numerous in spirals; ovaries several to many, pistils often comma shaped. (leaf veins often form closed cells)
Geranium Family - petals 5; stamens 10; styles elongated into a beak-like structure ("crane's bill")
Buckthorn Family - petals often clawed with cup shaped blade; leaves simple; ovaries may be half-inferior
Saxifrage Family - corolla and calyx usually 5 parted; stamens 5-10; petals often thread-like or fringed; ovaries 2 (3 in Lithophragma), barely united to deeply buried in the receptacle; stigmas often broad and flat
Rose Family - calyx and corolla 5 parted; ovary half-inferior (surrounded by hypanthium) or superior and numerous; stamens numerous; bases of perianth and stamens often fused into a hypanthium with a shining disk at its base; petioles usually with prominent stipules
Carrot Family - inflorescences compound umbels ("umbels of umbels"); leaves usually deeply lobed or compound with sheathing petioles; styles 2; fruits = schizocarps usually splitting in half at maturity.
Pea Family - corolla unique: upper petal = "banner", 2 lateral petals = "wings", two lower petals joined into a "keel"; leaves usually compound, stipulate; some species with tendrils; fruit = distinctive peapod-type "legume"
Violet Family - corolla strongly irregular; petals, 2 upper, 2 lateral, 1 lower, free; "bee guides"
Nightshade Family - anthers usually yellow, tightly appressed to the single style, often projecting beyond the corolla, which is often trumpet-shaped
Waterleaf Family - anthers usually yellow, tightly appressed to the single style, often projecting beyond the corolla, which is often trumpet-shaped
Phlox Family - corolla usually forming a narrow tube with flaring lobes; petals usually twisted in bud; sepals united; stigmas usually 3; stamen filaments often attached at different heights to floral tube alternate to corolla lobes.
Forget-Me-Not Family - inflorescences often coiled; leaves alternate; fruit = 4 nutlets, usually bristly
Primrose Family - stamens opposite petals and attached to corolla tube; style 1
Morning Glory Family - corolla funnel-like, petals united for their entire length (barely lobed); stigmas 2; vining habit
Gentian Family - sepals, 4 or 5; petals and stamens = sepals, stamens fused to corolla walls alternate with lobes
Heath Family - flowers either open and rhododendron-like or nearly closed and blueberry-like; predominately shrubby; anthers often awned (ovary may be inferior.)
Mint Family - stems square; leaves opposite; corolla 2 lipped; flowers often in whorles; stamens 4 in 2 pairs (sometimes two sterile); ovary 4 lobed; odor often aromatic (compare with similar Scrophulariaceae)
Broomrape Family - plants lacking chlorophyll, variously cream, red, brown, purple, tan; flowers similar to Scrophulariaceae
Snapdragon Family - petals 4 or 5; corolla two lipped; stamens 2 or 4 (often fused in 2 pairs) (5 in Penstemon); stems round or with concave sides (compare with similar Lamiaceae)
In subfamily Lobeliaoideae, flowers strongly 2 lipped
Gourd Family - vines creeping with tendrils; flowers unisexual; stamens often at least partially fused; fruit gourd-like, sometimes spiny
Current (Gooseberry) Family - sepals 5, usually showier than the 5 petals; calyx fused to ovary; stamens 5; fruit smooth or spiny berry; habit shrubby, often heavily armed
Bellflower Family - flowers: in subfamily Campanuloideae, flowers bell-shaped or tubular; in subfamily Lobeliaoideae, flowers strongly 2 lipped; stamens 5, filaments usually partially united.
Honeysuckle Family - flowers in pairs, or if in crowded inflorescences (umbels), often with showier flowers around the margin (irregular in Lonicera); leaves opposite; stamens 4-5, alt.; fruit berry or drupe.
Valerian Family - corolla slightly irregular and often spurred or inflated at base; calyx obscure; leaves opposite; inflorescence many flowered; stamens 3, 2, or 1
Daisy Family - flowers tightly compressed, tiny, each inflorescence appearing as a single flower; florets of 2 types: 1) ray flowers - strap-like corolla, 2) disk flowers - round tubular corollas; styles two lobed; involucre (overlapping series of leafy bracts) subtends the inflorescence; fruits often with feathery pappus
Grass Family - flowers arranged in spikelets subtended by bracts called glumes, each flower (floret) surrounded by 2 bracts (from ovary out): the pelea and lemma; stems round, hollow, with swollen nodes; leaves arising from nodes but sheathing the stem for part of their length, sheath usually open, often with ligule where sheath diverges from stem.
Sedge Family - stems often triangular, solid; leaves with closed sheaths, no ligule; flowers subtended by a single bract
Rush Family - Flowers small, green/brown; perianth 6 parted (like minute lilies); habit grass-like.
Lily Family - flowers with 3 sepals and 3 petals (often 6 +/- identical perianth parts), stamens 6; ovary superior; leaves often lanceolate
Iris Family - stamens 3; ovary inferior; leaves often basal in a fan-like, flattened arrangement
Orchid Family - flowers very specialized, very irregular; roots without root hairs, covered with whitish, water absorbing tissue (velamen)
Calla Lily Family - flowers in spadix surrounded by a spathe
Duckweed Family - small lobed plants floating freely; rarely flowering
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