Transcript Mann Gulch Fire - Delaware Trees

Bignoniaceae (the bignonia family)
• 110 genera
• Mostly tropical
• Leaves opposite or whorled
• Big flowers
trumpet creeper
Campsis radicans (Bignoniaceae)
• Opposite, pinnately compound leaves
• Serrate leaflets
• Red trumpet-shaped flowers
• Cigar-shaped capsules
• A trailing or climbing vine
• Aerial roots
catalpa
Catalpa spp. (Bignoniaceae)
• Large, opposite or whorled, heart-shaped leaves
• Twigs stout, lenticellate, pith solid
• Bark scaly
• Flowers 2” long, white, in panicles, spring
• Fruit = capsules up to 18” long, like cigars, seeds
winged, fall
• 2 species planted and escaped, now common
throughout Delaware
• Habitat = edges and open areas
• No commercial importance or wildlife value
paulownia (also known as princess-tree)
Paulownia tomentosa (Scrophulariaceae)
• Leaves opposite, very large (up to 12”), heart-shaped,
hairy (tomentose)
• Twigs stout, lenticellate, pith usually hollow
• Leaf scars large and horseshoe-shaped
• Bark light gray, not deeply furrowed
• Purple flowers in spring, very showy
• Fruit = a woody capsule, oval, green and sticky at
first and then brown and dry, filled with many
small seeds with papery wings
• A fast-growing medium-sized tree
• Invasive species – very aggressive
• Common throughout Delaware
Caprifoliaceae (the honeysuckle family)
• 300 species of shrubs and vines and a few
small trees
• Temperate regions of the northern hemisphere
• Very important ornamentals – more than 100
species planted in our area
Japanese honeysuckle
Lonicera japonica (Caprifoliaceae)
• ** Invasive Exotic **
• Opposite simple leaves are small
• Hollow pith
• Very fragrant flowers in late spring
• Black berries
• Does not have aerial roots or tendrils
• A vine found throughout Delaware
• Shade-intolerant
arrowwood
Viburnum dentatum (Caprifoliaceae)
• Opposite, simple leaves with big teeth, shiny
• Twigs angular and smooth
• Buds light brown
• Flowers white, small, in clusters in spring
• Fruit similar to mapleleaf viburnum
• A shrub up to 15 feet tall
• Common in moist forests throughout Delaware
• Good for wildlife
mapleleaf viburnum
Viburnum acerifolium (Caprifoliaceae)
• Leaves opposite, simple, 3-lobed with coarse teeth
• Deep red in fall
• Palmate venation with rugose veins
• Buds purple
• Small white flowers in clusters in summer
• Fruit = ¼” dark blue drupes
• Twigs thin and velvety
• A shrub to 6’ common in New Castle County
• Understory dweller in moist forests
• Good wildlife value
common elderberry
Sambucus canadensis (Caprifoliaceae)
• Opposite, pinnately compound leaves
• 5-7 pairs of elliptical, serrate leaflets
• Twigs with warty lenticels, stout, smell bad when crushed
• Solid white pith
• Leaf scars broad crescents, can meet to form ringed nodes
• Flowers in summer in big clusters. Profuse.
• Fruit = drupe. Purple, ¼”. Late summer.
• A shrub to 10’ tall found next to streams and in bottomlands
• Common statewide in Delaware (but only on its habitat)
• Good food for wildlife
• Not commercially important
blackhaw
Viburnum prunifolium (Caprifoliaceae)
• Opposite leaves somewhat like black cherry leaves
• Red petioles, concave, subtlety winged
• Twigs slender with orange lenticels
• Spur shoots like spines
• ½” terminal bud
• Bark on bigger specimens like flowering dogwood
• Flowers white, in 3” clusters in spring
• Fruit = dark blue ½” drupes with red stalks, summer.
• Range = the Mid-Atlantic states west to Missouri,
including all of Delaware
• Habitat = understory of moist woods
• Can be a small tree to 25’
• Good for wildlife