Dogwood verbenum, what is it? and Euphorbia characias ssp. wulfenii #3

Dogwood verbenum, what is it?

inflorescence best answer:

Answer by gardengallivant
Viburnum species are similar to the dogwood (Cornus) species with white flowers and simple opposite leaves, but they are separate genera. Flowering dogwood is less confused because the 4 showy white bracts disguise how similar the tiny central flowers are to the Viburnum's flower cluster. In reality both genera have clusters of small flowers called cymes. The way to tell the flowers apart is Viburnum flowers always have five petals and dogwood flowers always have four.
http://www.floridata.com/ref/v/vibu_den.cfm

Some species can be confused like arrowwood viburnum (Viburnum recognitum) and silky dogwood (Cornus amomum) in these pictures
http://friendsoffreshpond.org/calendar2011/photopages2011cal/jun11/p06-26-11comparison.htm

Doublefile viburnum (Viburnum plicatum) looks like a dogwood when seen blooming from a distance,
http://davesgarden.com/guides/pf/showimage/102876/
http://plants.chaletnursery.com/12120004/Plant/1582/Summer_Snowflake_Doublefile_Viburnum
http://www.finegardening.com/plantguide/viburnum-plicatum-f-tomentosum-doublefile-viburnum.aspx

There are small shruby Verbena species with clustered inflorescences, but they never grow into large tree-like plants.
http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/groundcover/verbena_tenuisecta.html

inflorescence

Euphorbia characias ssp. wulfenii #3


Euphorbiaceae - Western Mediterranean region
Mediterranean Spurge
Shown: Maturing inflorescence with true flowers--in bud and fully opened--emerging from the cup-shaped cyathia (composed of fused bracts)

Additional views:
farm4.static.flickr.com/3420/3225384806_9ed154767e_b.jpg
farm4.static.flickr.com/3503/3225442646_4b68987f1e_b.jpg
farm4.static.flickr.com/3387/3225472122_26ed29118f_b.jpg
farm4.static.flickr.com/3078/3224624825_ac43b81cd1_b.jpg
farm4.static.flickr.com/3326/3224698287_e69a0bffd1_b.jpg

Photographed in a private garden in San Francisco, California

---

Orignal From: Dogwood verbenum, what is it? and Euphorbia characias ssp. wulfenii #3