Salicaceae

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salicaceae

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Salicaceae

  1. 1. Salicaceae (willow family)
  2. 3. http://dendro.cnre.vt.edu/dendrology/syllabus2/factsheet.cfm?ID=898 <ul><li>narrowleaf cottonwood   Salicaceae   Populus  angustifolia   </li></ul><ul><li>Leaf:  Alternate, simple, lanceolate to narrowly ovate (willow-like), 2 to 5 inches long, finely serrated, often with a very short petiole that is partially flattened, shiny green above, paler and often blotchy orange below.  Flower:  Dioecious; male and female as hanging, long (several inches), pale yellow-green catkins, appearing in early spring before the leaves.  Fruit:  Small (1/4 inch), 2-valved, dry capsule on a hanging catkin, each capsule contains numerous small, cottony seeds.  Twig:  Slender to moderately stout, round, shiny yellow-brown, orange lenticels, buds are yellow-green and brown, long (1 inch), curved, resinous and fragrant. Twig has a bitter aspirin taste.  Bark:  Smooth light gray with many lenticels when young, later becoming darker with long deep furrows and broad ridges, often very thick and rough.  Form:  Medium sized tree up to 60 feet with a narrow crown.   </li></ul><ul><li>340W </li></ul><ul><li>Angiosperm </li></ul>
  3. 5. http:// dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID =401 <ul><li>balsam poplar   Salicaceae   Populus  balsamifera ssp. balsamifera </li></ul><ul><li>Leaf:  Alternate, simple, ovate, finely serrated, 3 to 6 inches long, shiny dark green, paler and often blotchy orange below, petiole long with glands at the leaf base.  Flower:  Dioecious; male and female as hanging, long (several inches), pale yellow-green catkins; appearing in early spring.  Fruit:  Small, 2-valved, dry capsule containing numerous small seeds.  Twig:  Moderately stout, round, shiny reddish brown, orange lenticels, buds are reddish brown to brown, long (1 inch), curved, resinous and fragrant. Twig has a bitter aspirin taste.  Bark:  Greenish gray with lighter lenticels when young, later becoming darker and furrowed with long, scaly ridges.  Form:  Medium sized tree reaching up to 80 feet tall, narrow, pyramidal crown.     </li></ul><ul><li>321E 341W </li></ul><ul><li>Angiosperm </li></ul>
  4. 7. http:// dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID =64 <ul><li>eastern cottonwood   Salicaceae   Populus  deltoides </li></ul><ul><li>Leaf:  Alternate, simple, pinnately veined, 3 to 6 inches long, triangular (deltoid) in shape with a crenate/serrate margin. The petiole is flattened and glands are present at the top of the petiole.  Flower:  Dioecious; male and female as pendulous catkins, appearing before the leaves.  Fruit:  Cottony seeds, 1/4 inch long borne in a dehiscent capsule, maturing over summer.  Twig:  Stout, somewhat angled and yellowish; buds are 3/4 inch long, covered with several brown, resinous scales. Has a bitter aspirin taste.  Bark:  Smooth, gray to yellow-green when young. Later turning gray with thick ridges and deep furrows.  Form:  A large tree with a clear bole and an open spreading crown resulting in a somewhat vase-shaped form. </li></ul><ul><li>322E </li></ul><ul><li>Angiosperm </li></ul>
  5. 9. http://dendro.cnre.vt.edu/dendrology/syllabus2/factsheet.cfm?ID=537 <ul><li>Fremont cottonwood   Salicaceae   Populus  fremontii </li></ul><ul><li>Leaf:  Alternate, simple, broadly cordate to triangular, coarsely crenate, 2 to 4 inches long, petiole flattened, shiny green above, sometimes pubescent beneath.  Flower:  Dioecious; males and females as hanging catkins, 2 to 4 inches long, yellow-green, appearing in early spring before the leaves.  Fruit:  Light brown, small egg-shaped capsules, splits (3 parts) to disseminate numerous, small cottony seeds.  Twig:  Moderate to stout, gray-brown to yellow-brown, swollen at leaf scars; large green-brown pointed bud, not sticky; twig has a bitter aspirin taste.  Bark:  Light gray-brown, becoming deeply furrowed with flat-topped ridges.  Form:  Reaches up to 60 feet in height with a broad, flat-topped crown, with a trunk up to 2 to 3 feet in diameter.     </li></ul><ul><li>342W </li></ul><ul><li>Angiosperm </li></ul>
  6. 11. http:// dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID =65 <ul><li>Bigtooth (largetooth) aspen   Salicaceae   Populus  grandidentata   </li></ul><ul><li>Leaf:  Alternate, simple, orbicular to ovate, 3 to 4 inches long, pinnately veined, large blunt teeth, petiole flattened vetically, green above and paler below.  Flower:  Dioecious; males and females occur on hanging, 2 to 3 inch long fuzzy catkins, appearing before the leaves in early spring.  Fruit:  Cottony seeds, 1/4 inch long, borne in small dehiscent capsules that occur along catkins, maturing late spring to early summer.  Twig:  Medium-textured, gray-brown in color; buds are ovate, pointed, red-brown to gray with some pubescence; leaf scars raised and heart-shaped. When chewed, the twig has a bitter, aspirin taste.  Bark:  Thin, gray, olive-green to milky green and smooth on young stems; later gray-brown, ridged with diamond shaped lenticels and splits forming.  Form:  A medium sized tree with an irregular, thin crown and a straight bole.    </li></ul><ul><li>323E </li></ul><ul><li>Angiosperm </li></ul>
  7. 13. http:// dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID =160 <ul><li>quaking aspen   Salicaceae   Populus  tremuloides </li></ul><ul><li>Leaf:  Alternate, simple, 1 to 3 inches long, green above and paler below, heart-shaped to nearly round with a fine toothed margin, petiole is flattened.  Flower:  Dioecious; male and female hanging catkins 1 to 3 inches long.  Fruit:  Catkin (2 to 4 inches long), with attached light green capsules which contain many small hairy seeds.  Twig:  Slender, glabrous, reddish brown often with a gray, waxy film; buds conical, reddish brown, terminal bud 1/4 inch long, may be slightly resinous.  Bark:  At first smooth, creamy yellowish-white to very light green; later developing thick furrows and becoming dark, especially near the base.  Form:  Small (30 to 40 feet tall) upright tree, which often occurs in thickets.   </li></ul><ul><li>326E 344W </li></ul><ul><li>Angiosperm </li></ul>
  8. 15. http:// dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID =235 <ul><li>black cottonwood   Salicaceae   Populus  balsamifera ssp. Trichocarpa </li></ul><ul><li>Leaf:  Alternate, simple, deciduous; variable in size and shape on same tree, commonly 3 to 6 inches long, but can be much larger; ovate-lanceolate to deltoid, dark green above and silvery white below with rusty smears of resin, margins wavy to crenate; petiole long, and most often round but may be flattened.  Flower:  Dioecious; borne in long, drooping aments that appear before the leaves.  Fruit:  Rounded, 3-valved capsules (1/4 to 1/2 inch in diameter) which open to release many cottony-tufted seeds; seeds are very tiny and black.  Twig:  Moderately stout, greenish brown to olive-gray, often ribbed or angled in cross section when young, covered with distinct lenticles, spur shoots are common on older branches; buds are long (1/2 to 3/4 inch) and sharp-pointed, resinous and aromatic, covered with imbricate scales. Twig has a bitter aspirin taste.  Bark:  When young it is smooth and yellowish tan to gray; later gray to gray-brown and broken into deep furrows and flattened ridges, up to 2 1/2 inches thick.  Form:  The tallest broad-leaved tree in the West, growing to 200 feet tall and 6 feet in diameter. Has a broad, open crown.   </li></ul><ul><li>345W </li></ul><ul><li>Angiosperm </li></ul>
  9. 17. http://dendro.cnre.vt.edu/dendrology/syllabus2/factsheet.cfm?ID=691 <ul><li>Bebb's willow   Salicaceae   Salix  bebbiana   </li></ul><ul><li>Leaf:  Alternate, simple, elliptical to obovate, 2 to 4 inches long, margins entire or with a few shallow scattered teeth, dull dark green to gray-green above, white, hairy and distinctly net-veined beneath.  Flower:  Dioecious; 1 to 2 inches long, fuzzy catkins, yellowish white, appearing in spring with the leaves.  Fruit:  Small (1/4 inch), long-pointed, hairy capsules in oblong clusters; each capsule contains numerous small fuzzy seeds.  Twig:  Slender, greenish brown to reddish brown, gray fuzz when young; gray pointed buds are appressed and have a single cap-like scale; numerous widely forking twigs.  Bark:  Shiny gray-green when young with numerous reddish lenticles; later becoming quite rough and furrowed; diamond shaped patterns due to fungus often develop on the trunk.  Form:  A large, densely branched shrub to 10 feet, occasionally grows as a small, multi-stemmed tree.     </li></ul><ul><li>330E 351W </li></ul><ul><li>Angiosperm </li></ul>
  10. 19. http:// dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID =86 <ul><li>black willow   Salicaceae   Salix  nigra   </li></ul><ul><li>Leaf:  Alternate, simple, pinnately veined, lanceolate in shape, 3 to 6 inches long, with a finely serrate margin. Leaves are dark and shiny above, light green below.  Flower:  Dioecious; flowers are tiny, green, borne on catkins, 1 to 3 inches long, early summer.  Fruit:  Cone-shaped capsules that contain many small, cottony seeds, borne on catkins; capsules split at maturity, mid summer.  Twig:  Slender, orange-brown in color, with a bitter aspirin taste; buds are small and appressed, covered by one bud scale, the terminal bud absent; stipules/scars are obvious.  Bark:  Brown to gray-black, with thick, somewhat scaly ridges and deep furrows.  Form:  A small to medium sized tree that can develop a massive trunk with a spreading, irregular crown. Black willows are often affected by crown gall, and witches brooms and trunk sprouting are common.   </li></ul><ul><li>335E 361W </li></ul><ul><li>Angiosperm </li></ul>
  11. 21. http://dendro.cnre.vt.edu/dendrology/syllabus2/factsheet.cfm?ID=568 <ul><li>Scouler willow   Salicaceae   Salix  scouleriana </li></ul><ul><li>Leaf:  Alternate, simple, distinctly obovate, 3 to 5 inches long, margins usually entire but may have a few wavy teeth, edges rolled under, often arranged in a fan-like fashion at the ends of twigs, dark green above, paler and maybe reddish hairy below.  Flower:  Dioecious; 1 to 2 inches long, fuzzy catkins, yellowish white, appearing in spring with the leaves.  Fruit:  Small (1/4 inch), long-pointed, hairy capsules in oblong clusters; each capsule contains numerous small fuzzy seeds.  Twig:  Slender, yellowish brown to red, may have some fuzz; red buds are large and pointed, with a single cap-like scale. Bark:  Gray to gray-brown, smooth with diamond shaped lenticels when young, later becoming shallowly fissured and scaly.  Form:  Large shrub but often a small tree with a single, upright trunk and round crown, reaching 25 feet. </li></ul><ul><li>363W </li></ul><ul><li>Angiosperm </li></ul>

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