Utah Flora                                                     BOT2100
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Utah Flora BOT2100. Gymnosperms Cupressaceae. Distinguishing Characters: Fleshy cones B. scale-like leaves. Utah Flora BOT2100. Gymnosperms Pinaceae. Distinguishing Characters:

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Utah Flora BOT2100

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Utah flora bot2100

Utah Flora BOT2100

Gymnosperms

Cupressaceae

  • Distinguishing Characters:

  • Fleshy cones

  • B. scale-like leaves


Utah flora bot2100

Utah Flora BOT2100

Gymnosperms

Pinaceae

  • Distinguishing Characters:

  • needle-like leaves in groups of 1 to 5

  • woody cones with large bracts


Utah flora bot2100

Utah Flora BOT2100

Gymnosperms

Ephedraceae

  • Distinguishing Characters:

  • shrubs, exclusively

  • Opposite or whorled, scale-like leaves

  • Leaves are deciduous

  • Scale-like cone bracts, not woody


Utah flora bot2100

Utah Flora BOT2100

Monocots

Liliaceae

  • Distinguishing Characters:

  • carpels, petals, sepals in 3’s, fruit a capsule

  • Tepals not petals or sepals

  • Often the tepals are petaloid (colored)

  • Leaves basal, alternate (sometimes whorled)

  • Parallel leaf veins

  • One seed leaf (cotyledon)


Utah flora bot2100

Utah Flora BOT2100

Monocots

PoaceaeGraminae

  • Distinguishing Characters:

  • Parallel leaf veins

  • One seed leaf (cotyledon)

  • Flowers in spikelets, arranged in spikes or panicles

  • Sepaloid bracts called glumes (2) in a floret

  • Ovary enclosed by bracts called lemma & palea

  • Caryopsis – dry fruit of 2 locules that is fused entirely to the embryo


Utah flora bot2100

Utah Flora BOT2100

Dicots

Ranunculaceae

  • Distinguishing Characters:

  • Irregular and regular flowers; petals free, sometimes absent (sometimes spurred)

  • When absent, sepals petaloid (often spurred)

  • petals 5, sepals 5, many stamens

  • fruit achenes or follicles (a fruit made from 1 carpel and dehiscent along 1 line)

  • Leaves alternate (rarely opposite); simple to pinnately or palmately compound; margins entire to lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Boraginaceae

  • Distinguishing Characters:

  • Regular flowers, petals fused

  • Petals, 5 lobed, sepals 5, stamens 5

  • fruit of 4, 1 seeded nutlets (dry, hard, indehiscent)

  • Leaves alternate, often basal, simple,

  • margins entire to pinnately lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Hydrophyllaceae

  • Distinguishing Characters:

  • Regular flowers, petals fused

  • Petals 5 lobed, 5 sepals, 5 stamens

  • fruit a capsule

  • leaves mostly alternate, some basal, simple to pinnately compound, margins entire to pinnately lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Lamiaceae Labiatae

  • Distinguishing Characters:

  • Irregular flowers, fused petals

  • Petals 5 lobed (2-lipped or bilabiate), 5 sepals

  • 2-4 stamens

  • fruit of 4, 1 seeded nutlets

  • Square stems (mostly);

  • leaves opposite, somtimes whorled, simple to pinnately or palmately compound, margins entire, lobed or toothed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Scrophulariaceae

  • Distinguishing Characters:

  • Irregular flowers, petals fused

  • Petals 5 lobed (2-lipped or bilabiate), 5 sepals

  • 4-5 stames, when 5 stamens,

  • one is infertile (staminode)

  • fruit a capsule

  • Leaves alternate or opposite, simple, margins entire to

  • pinnately lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Brassicaceae Cruciferae

  • Distinguishing Characters:

  • Regular flowers, petals separate

  • 4 petals (cruciform, cross-shaped), 4 sepals

  • 4-6 stamens

  • Silique- pod that is many times longer than wide

  • Silicle- pod that is nearly as long and wide (roundish)

  • -pod made from 2 carpels, always superior, divided into two partitions by a replum (thin papery divider)

  • D. Leaves alternate or basal, simple to pinnately compound, margins entire to lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Polemoniaceae

  • Distinguishing Characters:

  • Regular flowers, petals fused

  • Petals 5 lobed, 5 sepals, 5 stamens

  • Fruit a capsule

  • Leaves alternate, simple to pinnately compound, sometimes palmately compound, margins entire to lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Fabaceae Leguminosae

  • Distinguishing Characters:

  • Irregular, petals separate an fused

  • 5 petals, 3 petals are free (Banner and 2 wings)

  • 2 petals are fused (keel), 5 sepals

  • 5 or 10, when 10, they can have fused or separate filaments

  • C. Fruit a legume

  • pod made of 2 carpels that dehisces along 2 lines

  • (no replum)

  • D. Leaves alternate, mostly pinnately or palmately compound, margins often entire


Utah flora bot2100

Utah Flora BOT2100

Dicots

Onagraceae

  • Distinguishing Characters:

  • regular, petals separate

  • 4 petals, 4 sepals, 4 or 8 stamens

  • fruit a capsule, ovary inferior

  • Leaves alternate, opposite, whorled and basal, simple, margins entire to pinnately lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Apiaceae Umbelliferae

  • Distinguishing Characters:

  • regular, petals free

  • flowers in compound umbels

  • B. 5 petals, 5 sepals, 5 stamens (often exserted)

  • fruit a schizocarp (dry indehiscent fruit, not hard, that splits into 2 or many, 1 seeded segments), inferior ovary

  • Leaves alternate, often compound, margins entire to pinnately lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

Malvaceae

  • Distinguishing Characters:

  • regular, petals free

  • 5 petals, 5 sepals, many stamens, filaments fused into a tube

  • fruit a schizocarp made from many carpels, superior ovary

  • Leaves alternate, simple to compound, always palmately lobed or divided


Utah flora bot2100

Utah Flora BOT2100

Dicots

Polygonaceae

  • Distinguishing Characters:

  • regular, tepals free or fused

  • flowers in umbels or racemes

  • B. perianthof 5 or 6 tepals, flowers are arranged in

  • 4 or 5 lobed involucres

  • fruit an achene, superior ovary

  • leaves alternate or basal, always simple, entire


Utah flora bot2100

Utah Flora BOT2100

Dicots

Chenopodiaceae

  • Distinguishing Characters:

  • flowers regular, mostly imperfect, tepals free

  • perianth of 5 tepals, 5 stamens

  • fruit an achene or a utricle (dry, hard, 1 seeded fruit, nut-like)

  • leaves alternate, simple, entire to pinnately lobed,

  • sometimes reduced to succulent or bract-like scales


Utah flora bot2100

Utah Flora BOT2100

Dicots

Rosaceae

  • Distinguishing Characters:

  • regular, petals free

  • 5 petals, 5 sepals, calyx fused into a hypanthium,

  • stamens many, ovary mostly superior, rarely

  • inferior (as in Malus, apples, or Amelanchier)

  • Fruit achenes or drupes when ovary is superior;

  • Pomes when ovary is inferior

  • D. leaves alternate, simple to palmately or pinnately compound, margins entire to lobed


Utah flora bot2100

Utah Flora BOT2100

Dicots

AsteraceaeCompositae

  • Distinguishing Characters:

  • Ray flowers are irregular, fused

  • Disk flowers are regular, fused

  • arranged in involucres with bracts called phyllaries

  • Petals 5 lobed, calyx modified into pappus

  • Fruit an achene, ovary inferior

  • leaves alternate, opposite or basal, simple to pinnately compound, mostly entire, sometimes lobed


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