Angiosperm Tree Family Identification Flashcards
1
Q
Ginkgoaceae
A
- Fan-shaped leaves with parallel veins
- Plum-like seeds (fleshy coat smells like rancid butter)
- Catkins
- Old trees grow to 25m tall
- Male & Female trees are separate
2
Q
Plantanaceae
A
- Scaly bark
- Clusters of ball-shaped flowers and achenes
- Male & Female flowers on tree, in different clusters
- Mature trees 110-170m tall, 3-14m diameter
3
Q
Magnoliaceae
A
- Stamens and pistils in cone-like spirals
- Large terminal buds
- Aromatic bark
- Simple alternate leaves (sometimes lobed)
4
Q
Hamamelidaceae
A
- Only the one species
- Reaches tree height
- Simple alternate leaves, irregular margins
- Bright yellow flowers with 4 strap-like petals
- Young twigs are hairy
- Smooth to slightly scaly bark
- Mature trees 8m tall
5
Q
Ulmaceae
A
- Simple alternate leaves, asymmetrical base
- Bisexual flowers
- Superior positioned ovary (2 united carpels forming single chamber)
- Matures as winged seed
6
Q
Juglandaceae
A
- Aromatic
- Large (20-100cm) pinnately compound or ternate leaves
- Wind pollinated
- Flowers arranged in catkins
- Nuts in outer husks
7
Q
Fagaceae
A
- Long slender buds
- Simple alternate leaves that dry and stay on tree in winter, tooth/point at end of each leaf vein
- 2 triangular nuts held in bristly husks
- Male & Female flowers on same tree
- Mature trees reach 25m tall
8
Q
Salicaceae
A
- Simple alternate leaves with pointed tips
- Unisexual flowers in catkins on separate male & female trees
- Sometimes have stipules
- Require observation at different growing stages for accurate identification
9
Q
Betulaceae
A
- Nut-bearing trees/shrubs
- Simple, surrate alternate leaves
- Male & Female flowers come from the came plant as the catkins
- Fruit is a small nut or short winged samara
10
Q
Taliaceae
A
- Simple alternate leaves
- Medium to larger mature trees
- Nut-like capsule contains one seed
- Seeds stay dormant for long periods of time
11
Q
Ericaeae
A
- Freshly exposed bark is bright green for photosynthesis
- Old bark is reddish and peels
- Simple alternate leaves with smooth margins
- Unshaped flowers
- Fruits appear in clusters of berries
