sensitive_plant's Identifications

Exploration of the Prunus virginiana From the Roseaceae Family.

The taxonomy of Roseaceae Prunus virginiana is Plantae, Tracheobionta, Spermatophyta, Mangoliophyta, Magnoliopsida, Rosidae, Rosales, Rosaceae, Prunus, virginiana.
The morphological traits that show with this species the leaves are alternate, simple, oblong to nearly oval, 5 to 10 centimeters long, finely serrated margin, dark green above and paler below, minute glands on petiole. The flowers are white, in a loose 8 to 15 centimeters long terminal raceme, appearing after leaves. The bark is smooth, gray-brown, conspicuous lenticels that develop into shallow fissures, young stems have shallowly peeling, curling layers. Finally, the fruit is dark red to purple drupe, 7 millimeters in diameter, maturing in late summer.
Comparing Prunus virginiana and Amelanchier alniflia, the virginiana has many flowers in a bunch, and the alniflia has long flowers. They both have some very similar looking leave the virginiana has more serrated leaves then the alniflia, but in size the leaves are close.
Prunus virginiana reproduces by seed and vegetative by rhizomes; vegetative expansion via rhizomes is its primary method of regeneration. Seed crops typically regular and viable, with seed-producing capacity higher in plants on open sites. Seeds are surrounded by a stony endocarp which may offer some resistance to germination but is permeable to moisture.

The Prunus virginiana was found in Minam canyon not next to the river but found farther above the hill 100 yard from the road. Very dry hillside next to Pondarosa pine also next to more Prunus virginiana. Volcanic basalt was the soil type, on a West aspect.

Prunus virginiana had berries, large group of flowers, and bright white peddles to attract birds, insects and other animals. Comparing to the fairly different looking characteristics of Physocarpus opulifolius. Having lots of bunched up flowers virginiana is nothing like the small bunch that opulifolius. The leaves on the virginiana are large and small serrated edges and the leaves on the opulifolius are small with a clover type look and have big serrates.

Citations
"choke cherry Rosaceae Prunus virginiana L. ." 2015. Web. 24 May 2016. http://dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID=238.
Hitchcock, C. L., and Arthur Cronquist. Flora of the Pacific Northwest. 3rd. Seattle and London, WA: University of Washington Press, 1976. Print.
"Prunus virginiana L. Show All chokecherry." Natural Resources Conservation Service . USDA, n.d. Web. 24 May 2016. http://plants.usda.gov/core/profile?symbol=prvi.
Rook, Earl J. "Prunus virginiana Chokecherry." N.p., 31 Aug. 2004. Web. 24 May 2016. http://www.rook.org/earl/bwca/nature/shrubs/prunusvir.html.

Exploration of the Crataegus douglasii From the Rosaceae Family

The taxonomy of Rosacea Crataegus douglasii is Plantae, Tracheobionta, Spermatophyta, Magnoliophyta, Magnoliopsida, Rosidae, Rosales, Rosaceae, Crataegus, Crataegus douglasii.
The morphological traits of Crataegus douglasii had four styles, nine stamens on two different flowers, it didn’t match the key and was hard to identify. The style number was more like colombina, but ovary and thorns were more like douglasii. Leaves alternate, simple, broad, 2.5-5 cm long. White flowers give rise to reddish-purple to black, glossy 8-10 mm wide berries, which are sweet and succulent. The tree forms a long trunk with spreading limbs bearing very sharp thorns 0.8-2.5 cm long.
Comparing this species to Rosaceae Fragaria virginiana to the Crataegus douglasii, they both have flowers that are radially symmetrical, they have five sepals, five petals, and stamens are generally numerous and all these parts ae attached at the edge of a hypanthium or base. Leaves are serrated, and they both have compound leaves. They both bear fruit. The ways that they are different is that the Crataegus douglasii has many thorns that are two or three centimeters long, and is also a shrub compared to the Fragaria virginiana which is a forb with no thorns that produces aggregate fruits.
Crataegus douglasii reproduce asexually by cross pollination. The male sexual reproduction parts of a flower are the stamens; which consists of an anther and filament. The female reproductive parts of a flower are the pistils; which consists of the stigma, style, and ovary.
Habitat for Crataegus douglasii was in a riparian zone in a forested area with volcanic and alluvial soil. This shrub grew next to associated species such as: Ponderosa Pine, Douglas Fir, and River Burch.
The observed adaptations on the Crataegus douglasii are the thorns that protects the shrub from getting dug up out of the ground by bears or other animals. The Fragaria virginiana grows close to the ground and sends runners to reproduce by cloning, it does not have to rely on the strawberry seeds to make new plants. They both have white flowers that attract insects to pollinate