Cortaderia is a genus of South American and Central American plants in the Poaceae grass family.
Yerba buena or hierba buena is the Spanish name for a number of aromatic plants, most of which belong to the mint family.
 "Yerba buena" translates as "good herb".
 The specific plant species regarded as "yerba buena" varies from region to region, depending on what grows wild in the surrounding landscape, or which species is customarily grown in local gardens.
 Perhaps the most common variation of this plant is spearmint ("Mentha spicata").
 The term has been (and is currently) used to cover a number of aromatic true mints and mint relatives of the genera "Clinopodium", "Satureja" or "Micromeria".
 All plants so named have medicinal properties, and some have culinary value as herbal teas or seasonings as well.
Jeanne Rose (born 9 January 1937) is an herbalist/aromatherapist who changed the current practice of American herbalism when she began her public work in 1969 with the publication of her first book, "Herbs & Things", "Jeanne Rose's Herbal".
 She began her herbal career in California as an undergraduate with studies in botany and science and a degree from San Jose State College.
 She went on to graduate work in Marine Biology and Ecology.
 In 1969, she wrote the first modern book of Herbalism, "Herbs & Things".
 She taught herbs and aromatherapy at the University of California Extension throughout the 1970s and privately throughout the United States.
 She has lived in San Francisco since 1967 and established a herbal/aromatic garden and study center.
 Becoming concerned about the environment and the production of aromatic plants, she organized the aromatherapy industry and a group, "The Aromatic Plant Project", to support local and organic production of aromatic plants; to provide resources for growers and distillers; to ensure high quality aromatherapy products and to educate consumers as to the appropriate and beneficial uses of these aromatic products.
Thyme ( ) is an aromatic perennial evergreen herb with culinary, medicinal, and ornamental uses.
The basal angiosperms are the flowering plants which diverged from the lineage leading to most flowering plants.
 In particular, the most basal angiosperms were called the ANITA grade which is made up of "Amborella" (a single species of shrub from New Caledonia), Nymphaeales (water lilies, together with some other aquatic plants) and Austrobaileyales (woody aromatic plants including star anise).
 ANITA stands for "Amborella", Nymphaeales and Illiciales, Trimeniaceae-"Austrobaileya".
 Some authors have shortened this to ANA-grade for the three orders, Amborellales, Nymphaeales, and Austrobaileyales, as the order Illiciales was reduced to the family Illiciaceae and placed, along with the family Trimeniaceae, within the Austrobaileyales.
Thymus vulgaris (common thyme, German thyme, garden thyme or just thyme) is a species of flowering plant in the mint family Lamiaceae, native to southern Europe from the western Mediterranean to southern Italy.
 Growing to 15 - tall by 40 cm wide, it is a bushy, woody-based evergreen subshrub with small, highly aromatic, grey-green leaves and clusters of purple or pink flowers in early summer.
Thymol (also known as 2-isopropyl-5-methylphenol, IPMP) is a natural monoterpene phenol derivative of cymene, CHO, isomeric with carvacrol, found in oil of thyme, and extracted from "Thymus vulgaris" (common thyme) and various other kinds of plants as a white crystalline substance of a pleasant aromatic odor and strong antiseptic properties.
 Thymol also provides the distinctive, strong flavor of the culinary herb thyme, also produced from "T. vulgaris".
A knot garden is a garden of very formal design in a square frame, consisting of a variety of aromatic plants and culinary herbs including germander, marjoram, thyme, southernwood, lemon balm, hyssop, costmary, acanthus, mallow, chamomile, rosemary, Calendulas, Violas and Santolina.
 Most knot gardens now have edges made from box ("Buxus sempervirens"), whose leaves have a sweet smell when bruised.
 The paths in between are usually laid with fine gravel.
 However, the original designs of knot gardens did not have the low box hedges, and knot gardens with such hedges might more accurately be called parterres.
Satureja is a genus of aromatic plants of the family Lamiaceae, related to rosemary and thyme.
 It is native to North Africa, southern and southeastern Europe, the Middle East, and Central Asia.
 A few New World species were formerly included in "Satureja", but they have all been moved to other genera.
 Several species are cultivated as culinary herbs called savory, and they have become established in the wild in a few places.
Sugandha Kokila Oil.
 The evergreen, Cinnamomum glaucescens (syn.
 Cinnamomum cecidodaphne), part of the Lauraceae family, is native to Nepal and grows wild in the districts of Dang, Rolpa and Sallyan in the Rapti Zone.
 This species is a diploid and can grow to an altitude of 1300 meters.
 Cinnamomum glaucescens is recognized as an aromatic plant, meaning it has an elevated level of essential oil.
 Using steam distillation, the dried berries of Cinnamomum glaucescens produce the essential oil commonly known as sugandha kokila oil, which is yellow in colour and has a camphoraceous, spicy aroma.
 This product can be used as a fragrance in soaps, detergents, cosmetics, perfumes and industrial fragrances.
 Sugandha kokila oil is also used in indigenous medicine as a demulcent and stimulant.
 The Nepal Trade Integration Strategy 2010, identified Medicinal and Aromatic Plants (MAPs) as one of Nepal’s top twenty goods and services with export potential.

Question: Are Thyme and Cortaderia both aromatic plants?
Answer: no