Acacia2

S-ar zice ca am gasit si pomul cu pamatufuri albe la: http://www.cas.vanderbilt.edu/bioimages/species/acan.htm

Acacia angustissima

Family: Fabaceae

Common name: white ball acacia

Synonym(s): prairie acacia

http://www.fireflyforest.com/flowers/whites/white17.html

Scientific Name: Acacia angustissima

Common Name: Prairie Acacia, White-ball Acacia

Flower Color: White, greenish cream, pinkish

Plant Type: Subshrub, Herb, Perennial, Deciduous

Height: To 3 feet (91 cm) tall or more

Date Observed: June 17, 2005

Notes: The flowers are clustered into 1/2 inch (1.3 cm) wide, fuzzy balls of stamens and are followed by brown seedpods. The leaves are green and bipinnate with tiny leaflets. The stems are reddish and spineless. The larger stems are ridged and grooved unlike the similar, taller, smooth-stemmed Lysiloma watsonii.

In fine, pt imaginea de sus: http://www.missouriplants.com/Whitealt/Acacia_angustissima_page.html

Leaves - Alternate, petiolate, stipulate, bipinnate (even), to +15cm long. Petioles to 3cm long, lacking glands. Expanded portion at the base of the petiole to 3mm long. Petioles and rachis with shallow adaxial groove, pubescent as the stem. Stipules thin and dry, ferruginous, ~3mm long, ~.5mm wide, with ciliate margins, other wise glabrous. Pinnae opposite to sub-opposite, +/-11 per side. Petiolules of pinnae -1mm long, antrorse pubescent. Leaf divisions with many pinnules (+/-50 per margin). Pinnules -4mm long, -1.5mm broad, acute, entire, oblique at the base, dull green above, light green below with a dark green midrib, with a few sparse hairs at the margins.

Inflorescence - Pedunculate, axillary globose clusters mostly in the apical half of the stem. Peduncles light green, sparse antrorse pubescent, carinate, +/-2cm long. Pedicels light green, to 1mm long. Flowers +/-25 per head

Flowers - Petals 5, green, erect, united at the very base, glabrous, acute, to -3mm long, 1mm broad, oblong elliptic. Calyx greatly reduced, .7mm long with very shallow lobes. Stamens very numerous (+100), well exserted from the perianth. Filaments white, glabrous, 5-8mm long, capillary. Anthers pale yellow, .1mm broad. Ovary superior, green, 1-1.2mm long in flower, .5mm in diameter, cylindric, subtended by a yellow ring-like nectary. Stipe .5-.7mm long. Style 1, as long as the filaments, light green, 3-4mm long. Fruits not seen.

Flowering - June - October.
Habitat - Rocky glades, open hillsides, exposed ledges along bluffs.
Origin - Native to U.S., Central and South America, Australia, Africa.

Flori asemanatoare are si Acacia mearnsii.

http://commons.wikimedia.org/wiki/Image:Acacia_mearnsii_flowers.JPG

Se poate face o comparatie cu pozele mele din articolul Acacia. Florile mele sunt mai pleostite pt ca le-a cam trecut vremea de inflorit.

Noutati despre Saman

Florile acestea superbe sunt identice cu cele pe care le admir de cate ori am treaba pe strada mea. Dar le cheama altfel.

http://www.californiagardens.com/Plant_Pages/albizia_julibrissin.htm

Albizia julibrissin is a quick growing tree, up to 3 feet or more per year. The Mimosa can grow to 25 feet tall an at least twice that width. They form a great deciduous shade tree. The soft finely divided leaves and silky pink flowers are beautiful. But there are some things to watch for. The Albizia julibrissin trees drop a tremendous amount of debris during the late Spring as the flowers drop and in the fall when the leaves come down. Albizia julibrissin is very similar in appearance to the Jacaranda trees until the flowers come on. Albizia julibrissin trees are hardy to zone 6 and will often come back even when it looks like there is no possible chance. Albizia is native to Asia where there over a hundred other species. Albizia is on the pest list in Florida and produces seedlings quite frequently in the garden here. The Mimosa trees are susceptible to several fungus diseases. Easy come easy go. This is often the case with fast growing trees.

Am plantat deja 3 pui de Saman, Albizia, sau cum s-o fi chemand. Doi arata fbine dar al treilea, cel mai nou, e cam pleostit.

Acacia

Stau de peste 30 de ani in Militari, dar abia ieri am vazut acest copac, mai inalt decat Samanul, cu "pamatufuri' albe. Cand am cautat Samanul pe Google am gasit si copaci cu flori albe, dar nu Mimosaceae ci Acacia. Cred ca in Mexic si Australia au conditii mai bune, dar se vede ca se pot adapta si la clima noastra.

Samanea Saman

Ce-mi place cum suna, parca ar fi nume de artist de la Bollywood :-)

De fapt e numele unor arbori pe care ii admir de cativa ani pe strada mea, dar abia de curand l-am aflat. Pt ca seamana cu frunzele de salcam le-am cautat la Acacia, dar acolo am gasit doar cu flori (pamatufuri) albe sau galbene. Uitandu-ma intr-o noapte la poze de flori (sunt tip bufnita, care prefera sa stea noaptea treaza si sa doarma dimineata mai tarziu) am gasit Mimoza Pudica cu pamatuf roz. Evrika, am strigat in sinea mea, dar m-am dezumflat cand am vazut ca e taratoare. Nu m-am demobilizat si am dat un search pe mimosacee. Si, voila, Samanea sau Albizia Saman in toata spendeata. Cica e arbore tropical sau subtropical, se mai cheama Monkey Pod sau Rainy Tree pt ca e mereu umbra si umezeala sub el, copiii mananca pastaile crude, care ar fi cam astringente, se foloseste ca arbore care face umbra pt arborii de cafea sau vanilie, pastaile se dau la animale ca furaj. Se inmulteste fie prin seminte, fie vegetativ, din ramuri plantate in pamant sau din copaci fara radacina (daca stiam asta atunci cand cineva a rupt unul dintre copacei foloseam copacelul rupt pt a-l planta in alta parte). Din seminte se face rasad care se planteaza intr-un loc insorit, pt ca samanul nu suporta deloc umbra. Cei de pe strada noastra incep sa infloreasca in iunie si infloresc mereu pana toamna tarziu. Se spune ca nu rezista la ger dar au rezistat la iarna carea fost extrem de geroasa acum doi ani. Pastaile au reusit sa se coaca, desi in literatura spune ca nu se prea coc. Pesemne in locurile de bastina (America de Sud si Asia) nu prea apuca, pt ca sunt culese. Sunt mimosacee pt ca la umbra sau seara li se strang frunzele.