E. poselgeri (SB852 Jim Hogg Co, Texas, USA) has bright pink flowers, and makes a
spectacular sight and an
interesting addition to any collection.
Very tall and slender, dark coloured. up to 1.2 m,
diameter 2 cm, ribs 6-10
tan-greyish white; 1
central up to 9 mm long, enlarged at its
4mm long; 8-15 straight
radials, 4,5mm long,
appressed (except at the stem tip)
E. kroenleinii, the
organ similar to dahlia
is not capable of producing new
shoots. Those sprout out only from the main
Each plant can have up to 8 tubers, 10-20 mm in diameter, with a
length of 60-100 mm. The colour is light brown in youth, later
Pink Rose/Mauve Magenta (Pink-Purple)
Ovoidal 20 mm Long, 10-15 mm Ø, dark green to brownish,
Seeds: Black 1,5mm
Notes: It apparently looks like some
flowers, fruits, and seeds of E. poselgeri are characteristic for
Echinocereus, somewhat comparable to those of
tuberous root system
Echinocereus poselgeri GL391
Falcon Lake, Texas, USA
Photo and ©
Mladen Turcinovic (Croatia)
Published in: Cactées. 57.
1868 Table 2 fig. 2
Conservation status: Listed in
CITES Appendix II
West & South West USA (Texas) and Mexico (Coahuila, Nuevo Leon,
scrub in alluvial soils; 0-200 m;
USA: Texas, near the Rio
Grande, H. POSELGER
Lectotypus (L. BENS0N 14 , 1982): USA: Texas, Rio Grande'aboy*Belleville,
H. POSELGER coll. 1850 [MO]
- Cereus tuberosas Poselger.
Allg.Gartenz. 21: 135, 1853 nom. illegit.
- Echinocereus tuberosus (H. Poselger)
in FÖRSTER 's Handb. Cacteenk‑,ed. 2: 783, 1886
- Wilcoxia tuberosa (H. Poselger) K.
Verzeichnis: 18, 1935
- Cereus poselgeri (Ch. Lemaire) J. M. Coulter.
Contr.U.S. NAT.Herb. 3: 398, 1896
- Wilcoxia poselgeri (Ch. Lemaire) N. L. Britton
& J. N. Rose.
Contr.U.S. Nat. Herb. 12: 434, 1896
Sacasil, Zocoxochitl Pencil cactus, Dahlia
Buds just before opening
stigma and yellow
Some photos and information in this page courteously provided
by Dieter & Irene Waldeis
over water. They
need to be kept in a cool, dry place during
winter rest (at -5 +10°C).
This is important for the
flowers as well as for their health. Without this cool winter
period they normally won't get any
It is quite frost hardy -7 (-10)° C.
partial sun exposure.
In mild climate they grow well when planted freely outside
in well-drained soil.
(usually), it also can be grown from cuttings, as it can branch with
Photo of conspecific taxa,
varieties, forms and cultivars of
plants belonging to the
has lots of synonyms
like many other cacti) whit several controversial varieties and subspecies
and comprises different forms):