taxonID	type	description	language	source
E5DC02C4EA6E594CAC1EF3C4FCAA175E.taxon	description	Figs 6, 7	en	Abbo, Tito, Stickrod, Morgan A., Krohn, Alexander, Parker, V. Thomas, Vasey, Michael C., Waycott, William, Litt, Amy (2025): Investigating a hybrid mixed population leads to recognizing a new species of Arctostaphylos (Ericaceae). PhytoKeys 251: 119-142, DOI: 10.3897/phytokeys.251.139172
E5DC02C4EA6E594CAC1EF3C4FCAA175E.taxon	description	Description. Shrub up to 2, 3 (5) m ht. and <10 m width; often layering, rooting when branches contact soil; burl 0 but with branchlets sprouting infrequently on stems; bark (red tinged) gray and shredding, from large stems up to new growth; twigs and petioles with moderately to very dense, short, nonglandular hairs; leaves isofacial (with stomata on both surfaces), green, shiny, generally lanceolate to ovate (elliptic to rounded with mucronate tip); blade 1.4 – 3.2 cm length, 0.9 – 1.9 cm width; petiole 0.4 – 0.8 cm; inflorescence a raceme or few-branched panicle (generally <5 - branched), nascent and mature inflorescences of similar length and thickness, 0.5 to 1.1 cm, and ca. 1 mm; bracts ± scale-like, often grading to ± leaf-like proximally, generally green, photosynthetic in summer; flowers 5 - merous, urn-shaped, white to pinkish-white; fruit a multi-seeded drupe, generally reddish-orange, depressed axially; mesocarp mealy; endocarp generally rough, fused or separating into a variable number of nutlets.	en	Abbo, Tito, Stickrod, Morgan A., Krohn, Alexander, Parker, V. Thomas, Vasey, Michael C., Waycott, William, Litt, Amy (2025): Investigating a hybrid mixed population leads to recognizing a new species of Arctostaphylos (Ericaceae). PhytoKeys 251: 119-142, DOI: 10.3897/phytokeys.251.139172
E5DC02C4EA6E594CAC1EF3C4FCAA175E.taxon	etymology	Etymology. Based on discussions with the yak tityu tityu yak tiłhini (Northern Chumash Tribe), we selected the name Arctostaphylos nipumu because nipumu is the ytt (Northern Chumash language) word for the Nipomo Mesa region. The word nipumu is literally translated to English as “ of the big house ”, so we treat the epithet nipumu as a noun in apposition; ergo, Arctostaphylos nipumu is translated as “ Arctostaphylos of the big house ”. We recommend that A. nipumu be referred to by the common name nipumu manzanita or Nipomo Mesa manzanita; the latter regional name, Nipomo Mesa, is more well known in current usage, but the word Nipomo is an inferior Spanish transliteration of the word nipumu.	en	Abbo, Tito, Stickrod, Morgan A., Krohn, Alexander, Parker, V. Thomas, Vasey, Michael C., Waycott, William, Litt, Amy (2025): Investigating a hybrid mixed population leads to recognizing a new species of Arctostaphylos (Ericaceae). PhytoKeys 251: 119-142, DOI: 10.3897/phytokeys.251.139172
E5DC02C4EA6E594CAC1EF3C4FCAA175E.taxon	distribution	Distribution. Arctostaphylos nipumu is one of the most narrowly distributed Arctostaphylos species, occurring exclusively on Oceano series soil (Soil Survey Staff, USDA) at 100 – 200 m elevation in the sandy maritime chaparral and adjacent Quercus agrifolia woodlands of the Nipomo Mesa. It is the only member of the genus found in this area, and its isolated population appears to be associated with two local waterways, the Santa Maria River to the south, and Arroyo Grande Creek to the north (Fig. 1, inset). Its range is situated within a disjunction in the distribution of A. crustacea and just north of the northern edge of the distribution of A. purissima. Little is known about the biogeography of Arctostaphylos species, so it is unclear what has led to this distribution pattern, which is a topic we are currently investigating.	en	Abbo, Tito, Stickrod, Morgan A., Krohn, Alexander, Parker, V. Thomas, Vasey, Michael C., Waycott, William, Litt, Amy (2025): Investigating a hybrid mixed population leads to recognizing a new species of Arctostaphylos (Ericaceae). PhytoKeys 251: 119-142, DOI: 10.3897/phytokeys.251.139172
